- 22 Sep, 2016 18 commits
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Alexandre TORGUE authored
Signed-off-by: Gerald Baeza <gerald.baeza@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexandre TORGUE authored
Keep the clock enabled at the end of stm32_init_port but disable it in stm32_serial_remove. Note that stm32_pm function is there to manage the clock at runtime. Signed-off-by: Gerald Baeza <gerald.baeza@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexandre TORGUE authored
"st,hw-flow-ctrl" property is documented in device tree binding whereas "auto-flow-control" was used in the code. The driver is now aligned with the binding name "st,hw-flow-ctrl". Signed-off-by: Gerald Baeza <gerald.baeza@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexandre TORGUE authored
Signed-off-by: Gerald Baeza <gerald.baeza@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexandre TORGUE authored
Signed-off-by: Gerald Baeza <gerald.baeza@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexandre TORGUE authored
This adds documentation of device tree bindings for the STM32 USART Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexandre TORGUE authored
Register offset management rework to support both stm32f4 (default) and stm32f7. Driver rework to ensure same functional level on both stm32f4 and stm32f7: no new feature in this version yet. Signed-off-by: Gerald Baeza <gerald.baeza@st.com> Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nava kishore Manne authored
After issuing the reset, driver is not checking the rx and tx reset done status. So, modified driver to wait for the reset done status. Signed-off-by: Nava kishore Manne <navam@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nava kishore Manne authored
This patch adds RXBS register access support for zynqmp. To avoid the corner error conditions it will consider only RXBS[2:0] bits while checking the error conditions (Parity,Framing and BRAK). Signed-off-by: Nava kishore Manne <navam@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jiri Olsa authored
First loop in wait_for_xmitr could also trigger NMI watchdog in case reading from the port is slow: PID: 0 TASK: ffffffff819c1460 CPU: 0 COMMAND: "swapper/0" #0 [ffff88019f405e58] crash_nmi_callback at ffffffff8104d382 #1 [ffff88019f405e68] nmi_handle at ffffffff8168ead9 #2 [ffff88019f405eb0] do_nmi at ffffffff8168ec53 #3 [ffff88019f405ef0] end_repeat_nmi at ffffffff8168df13 [exception RIP: delay_tsc+50] RIP: ffffffff81325642 RSP: ffff88019f403bb0 RFLAGS: 00000083 RAX: 00000000000005c8 RBX: ffffffff81f83000 RCX: 0000024e4fb88a8b RDX: 0000024e4fb89053 RSI: 0000000000000000 RDI: 00000000000007d1 RBP: ffff88019f403bb0 R8: 000000000000000a R9: 0000000000000000 R10: 0000000000000000 R11: ffff88019f403ad6 R12: 000000000000250f R13: 0000000000000020 R14: ffffffff81d360c7 R15: 0000000000000047 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 --- <NMI exception stack> --- #4 [ffff88019f403bb0] delay_tsc at ffffffff81325642 #5 [ffff88019f403bb8] __const_udelay at ffffffff813255a8 #6 [ffff88019f403bc8] wait_for_xmitr at ffffffff81404390 #7 [ffff88019f403bf0] serial8250_console_putchar at ffffffff8140455c #8 [ffff88019f403c10] uart_console_write at ffffffff813ff00a #9 [ffff88019f403c40] serial8250_console_write at ffffffff814044ae #10 [ffff88019f403c88] call_console_drivers.constprop.15 at ffffffff81086b01 #11 [ffff88019f403cb0] console_unlock at ffffffff8108842f #12 [ffff88019f403ce8] vprintk_emit at ffffffff81088834 #13 [ffff88019f403d58] vprintk_default at ffffffff81088ba9 #14 [ffff88019f403d68] printk at ffffffff8167f034 Adding touch_nmi_watchdog call to the first loop as well. Reported-by: Chunyu Hu <chuhu@redhat.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jan Kiszka authored
Less magic that only requires comments. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Shawn Guo authored
Commit 0e125a5f ("tty: amba-pl011: define flag register bits for ZTE device") changes earlycon function pl011_putc() to use a pointer to uart_amba_port. This causes a regression when earlycon is enabled, because uart_amba_port is not available yet at earlycon time. Let's revert the change on pl011_putc() to fix the regression. The earlycon support for ZTE device can probably be added later by declaring a new earlycon setup function with a vendor specific compatible. Reported-by: Sudeep Holla <sudeep.holla@arm.com> Fixes: 0e125a5f ("tty: amba-pl011: define flag register bits for ZTE device") Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Tested-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Wei Yongjun authored
Commit 5d7519df ("serial: mxs-auart: Disable clock on error path") try to disable clock on error path, but still missing the clk_set_rate() error handling path. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adam Borowski authored
For now, these fall back to regular (dark) colors. It'd be tempting to replace blink with bright backgrounds, as permitted by CGA/VGA -- we already muck with the other programmable bit (foreground brightness vs 512 character font). This would bring vgacon in line with fbcon, which doesn't support blink anywhere but on some drivers renders that bit as bright background. If that is done, this commit should be amended to be one of ways of setting that bit. Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adam Borowski authored
These codes are supported by all major terminals, thus they occasionally see some use despite being redundant with \e[38;5;(x+8)m or (less exactly) \e[1;3(x)m. Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adam Borowski authored
Some guy went on a patching spree, adding 24-bit colour support all around: https://gist.github.com/XVilka/8346728Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adam Borowski authored
All other uses of vc_npar are inclusive (save for < NPAR) which raises eyebrows, so let's at least do so consistently. Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adam Borowski authored
This makes it show up on UBSAN: perl -e 'for (0..15) {my @x=("0")x$_;push @x,qw(38 2 64 128 192 4);printf "\e[%smAfter %d zeroes.\e[0m\n", join(";",@x[0..($_+5<15?$_+5:15)]), $_}' Seems harmless: if you can programmatically read attributes of a vt character (/dev/vcsa*), multiple probes can obtain parts of vt_mode then lowest byte (5th on 64-bit big-endian) of a pointer. Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 15 Sep, 2016 7 commits
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Kees Cook authored
The ptmx_fops structure is only changed during init, so mark it as such. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rob Herring authored
Commit 761ed4a9 ("tty: serial_core: convert uart_close to use tty_port_close") created a case where a port used for a console does not get shutdown on tty closing. Then a call to uart_tx_stopped() segfaults because the tty is NULL. This could be fixed to restore old behavior, but we also want to allow tty_ports to work without a tty attached. So this change to allow a NULL tty_struct is needed either way. Fixes: 761ed4a9 ("tty: serial_core: convert uart_close to use tty_port_close") Reported-by: kernel test robot <xiaolong.ye@intel.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fabien Lahoudere authored
dmaengine_terminate_all() is deprecated and should be replaced by dmaengine_terminate_sync() in non-atomic context or dmaengine_terminate_async() with dmaengine_synchronize(). See commit b36f09c3 ("dmaengine: Add transfer termination synchronization support") Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andy Shevchenko authored
The commit 761ed4a9 ("tty: serial_core: convert uart_close to use tty_port_close") refactored uart_close() to use tty_port_close(). At the same time it introduced a potential NULL pointer dereference. Rearrange the code to avoid kernel crash. Fixes: 761ed4a9 ("tty: serial_core: convert uart_close to use tty_port_close") Cc: Rob Herring <robh@kernel.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Richard Genoud authored
Since commit 18dfef9c ("serial: atmel: convert to irq handling provided mctrl-gpio"), interrupts from GPIOs are not disabled any more when the serial port is closed, leading to an oops when the one of the input pin is toggled (CTS/DSR/DCD/RNG). This is only the case if those pins are used as GPIOs, i.e. declared like that: usart1: serial@f8020000 { /* CTS and DTS will be handled by GPIO */ status = "okay"; rts-gpios = <&pioB 17 GPIO_ACTIVE_LOW>; cts-gpios = <&pioB 16 GPIO_ACTIVE_LOW>; dtr-gpios = <&pioB 14 GPIO_ACTIVE_LOW>; dsr-gpios = <&pioC 31 GPIO_ACTIVE_LOW>; rng-gpios = <&pioB 12 GPIO_ACTIVE_LOW>; dcd-gpios = <&pioB 15 GPIO_ACTIVE_LOW>; }; That's because modem interrupts used to be freed in atmel_shutdown(). After commit 18dfef9c ("serial: atmel: convert to irq handling provided mctrl-gpio"), this code was just removed. Calling atmel_disable_ms() disables the interrupts and everything works fine again. Tested on at91sam9g35-cm (This patch doesn't apply on -stable kernels, fixes for 4.4 and 4.7 will be sent after this one is applied.) Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Fixes: 18dfef9c ("serial: atmel: convert to irq handling provided mctrl-gpio") Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Wei Yongjun authored
The function lpuart_start_rx_dma() is called from several places, in some of which, such as lpuart_startup(), a lock be held here, so we should use GFP_ATOMIC when a lock is held. Fixes: 5887ad43 ("tty: serial: fsl_lpuart: Use cyclic DMA for Rx") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Liu Xiang authored
When dev.of_node is not NULL, we also need to set IRQF_TRIGGER_FALLING flag, otherwise it may cause uncertain interrupts. Signed-off-by: Liu Xiang <liu.xiang6@zte.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 13 Sep, 2016 4 commits
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Wei Yongjun authored
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR. Generated by: scripts/coccinelle/api/ptr_ret.cocci Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fabio Estevam authored
We should disable the previously acquired clock when enabling s->clk fails. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexander Sverdlin authored
Guenter Roeck reported a regression caused by commit "serial: earlycon: Extend earlycon command line option to support 64-bit addresses": console= and earlycon= options have the following format: ...,<addr>,<options> Historically used here simple_strtoul() had no problems with comma, but the new and recommended kstrtoull() requires null-terminated string and returns -EINVAL in case there are "options" at the end. There is no recommended to use function currently that will support it, so stick to obsolete simple_strtoull() variant. Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Reported-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Uwe Kleine-König authored
Some functions called by serial_imx_probe emit an error message themself (like kmalloc() and friends). clk_prepare_enable() and devm_request_irq() however don't which might make the driver silently fail to probe. So add an error message for these. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 05 Sep, 2016 1 commit
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Greg Kroah-Hartman authored
We want the fixes in here for merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 04 Sep, 2016 4 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fix from Thomas Gleixner: "A single fix for an AMD erratum so machines without a BIOS fix work" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/AMD: Apply erratum 665 on machines without a BIOS fix
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixes from Thomas Gleixner: "Two fixlet from the timers departement: - A fix for scheduler stalls in the tick idle code affecting NOHZ_FULL kernels - A trivial compile fix" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick/nohz: Fix softlockup on scheduler stalls in kvm guest clocksource/drivers/atmel-pit: Fix compilation error
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmLinus Torvalds authored
Pull device mapper fixes from Mike Snitzer: - a stable fix in both DM crypt and DM log-writes for too large bios (as generated by bcache) - two other stable fixes for DM log-writes - a stable fix for a DM crypt bug that could result in freeing pointers from uninitialized memory in the tfm allocation error path - a DM bufio cleanup to discontinue using create_singlethread_workqueue() * tag 'dm-4.8-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm bufio: remove use of deprecated create_singlethread_workqueue() dm crypt: fix free of bad values after tfm allocation failure dm crypt: fix error with too large bios dm log writes: fix check of kthread_run() return value dm log writes: fix bug with too large bios dm log writes: move IO accounting earlier to fix error path
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- 03 Sep, 2016 6 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixes from Chris Mason: "I'm still prepping a set of fixes for btrfs fsync, just nailing down a hard to trigger memory corruption. For now, these are tested and ready." * 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: fix one bug that process may endlessly wait for ticket in wait_reserve_ticket() Btrfs: fix endless loop in balancing block groups Btrfs: kill invalid ASSERT() in process_all_refs()
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fixes from Catalin Marinas: "arm64 and arm/perf fixes: - arm64 fix: debug exception unmasking on the CPU resume path - ARM PMU fixes: memory leak on error path and NULL pointer dereference" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: kernel: Fix unmasked debug exceptions when restoring mdscr_el1 drivers/perf: arm_pmu: Fix NULL pointer dereference during probe drivers/perf: arm_pmu: Fix leak in error path
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are a number of small driver fixes for 4.8-rc5. The largest thing here is deleting an obsolete driver, drivers/misc/bh1780gli.c, as the functionality of it was replaced by an iio driver a while ago. The other fixes are things that have been reported, or reverts of broken stuff (the binder change). All of these changes have been in linux-next for a while with no reported issues" * tag 'char-misc-4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: thunderbolt: Don't declare Falcon Ridge unsupported thunderbolt: Add support for INTEL_FALCON_RIDGE_2C controller. thunderbolt: Fix resume quirk for Falcon Ridge 4C. lkdtm: Mark lkdtm_rodata_do_nothing() notrace mei: me: disable driver on SPT SPS firmware Revert "android: binder: fix dangling pointer comparison" drivers/iio/light/Kconfig: SENSORS_BH1780 cleanup android: binder: fix dangling pointer comparison misc: delete bh1780 driver
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds authored
Pull driver core fixes from Greg KH: "Here are three small fixes for 4.8-rc5. One for sysfs, one for kernfs, and one documentation fix, all for reported issues. All of these have been in linux-next for a while" * tag 'driver-core-4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: sysfs: correctly handle read offset on PREALLOC attrs documentation: drivers/core/of: fix name of of_node symlink kernfs: don't depend on d_find_any_alias() when generating notifications
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging/IIO driver fixes from Greg KH: "Here are a number of small fixes for staging and IIO drivers that resolve reported problems. Full details are in the shortlog. All of these have been in linux-next with no reported issues" * tag 'staging-4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (35 commits) arm: dts: rockchip: add reset node for the exist saradc SoCs arm64: dts: rockchip: add reset saradc node for rk3368 SoCs iio: adc: rockchip_saradc: reset saradc controller before programming it iio: accel: kxsd9: Fix raw read return iio: adc: ti_am335x_adc: Increase timeout value waiting for ADC sample iio: adc: ti_am335x_adc: Protect FIFO1 from concurrent access include/linux: fix excess fence.h kernel-doc notation staging: wilc1000: correctly check if associatedsta has not been found staging: wilc1000: NULL dereference on error staging: wilc1000: txq_event: Fix coding error MAINTAINERS: Add file patterns for ion device tree bindings MAINTAINERS: Update maintainer entry for wilc1000 iio: chemical: atlas-ph-sensor: fix typo in val assignment iio: fix sched WARNING "do not call blocking ops when !TASK_RUNNING" staging: comedi: ni_mio_common: fix AO inttrig backwards compatibility staging: comedi: dt2811: fix a precedence bug staging: comedi: adv_pci1760: Do not return EINVAL for CMDF_ROUND_DOWN. staging: comedi: ni_mio_common: fix wrong insn_write handler staging: comedi: comedi_test: fix timer race conditions staging: comedi: daqboard2000: bug fix board type matching code ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull serial driver fixes from Greg KH: "Here are some small serial driver fixes for 4.8-rc5. One fixes an oft-reported build issue with the fintek driver, another reverts a patch that was causing problems, one fixes a crash, and some new device ids were added. All of these have been in linux-next for a while" * tag 'tty-4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: serial: 8250: added acces i/o products quad and octal serial cards serial: 8250_mid: fix divide error bug if baud rate is 0 Revert "tty/serial/8250: use mctrl_gpio helpers" 8250/fintek: rename IRQ_MODE macro
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