- 27 Nov, 2011 40 commits
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K. Y. Srinivasan authored
Cleanup error handling in the probe function. Signed-off-by:
K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:
Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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K. Y. Srinivasan authored
We intend to use the storage driver to manage the root device. To avoid deadlocks, use mempools to allocate struct storvsc_cmd_request. Signed-off-by:
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K. Y. Srinivasan authored
Use the KBUILD_MODNAME macro. Signed-off-by:
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K. Y. Srinivasan authored
Add a check to prevent memory corruption. Signed-off-by:
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K. Y. Srinivasan authored
Deal with some style related issues. Also get rid of an unused macro. Signed-off-by:
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K. Y. Srinivasan authored
Get rid of unnecessary include files. Signed-off-by:
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K. Y. Srinivasan authored
Add a new line to a debug string. Signed-off-by:
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K. Y. Srinivasan authored
Cleanup mousevsc_on_channel_callback(). This is based on the code provided by Joe Perches <joe@perches.com>. Signed-off-by:
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K. Y. Srinivasan authored
Inline the code for reportdesc_callback() as this function is called from mousevsc_probe(). As part of this, cleanup the code in reportdesc_callback(). Signed-off-by:
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K. Y. Srinivasan authored
Inline the code for mousevsc_on_device_add() as this only used from the function mousevsc_probe(). Signed-off-by:
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K. Y. Srinivasan authored
Make some state that is boolean in nature, a boolean variable. Signed-off-by:
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Dan Carpenter authored
"tmp" is used to store the output from cpu_to_be16() so it should be a __be16 bit type. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Michael Hennerich <michael.hennerich@analog.com> Signed-off-by:
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Sasha Levin authored
If the dummy evgen failed init, the irq allocation functions which assume init succeeded may still be called - causing an OOPS due to wrong assumption. Here's the oops: [ 3.914332] BUG: unable to handle kernel NULL pointer dereference at 0000000000000148 [ 3.915310] IP: [<ffffffff810b3008>] __lock_acquire+0xac/0xe50 [ 3.915310] PGD 0 [ 3.915310] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC [ 3.915310] CPU 1 [ 3.915310] Pid: 1, comm: swapper Not tainted 3.2.0-rc2-sasha-00279-gd7bfb12-dirty #20 [ 3.915310] RIP: 0010:[<ffffffff810b3008>] [<ffffffff810b3008>] __lock_acquire+0xac/0xe50 [ 3.915310] RSP: 0018:ffff880012499bc0 EFLAGS: 00010046 [ 3.915310] RAX: 0000000000000086 RBX: ffff880012490000 RCX: 0000000000000000 [ 3.915310] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000148 [ 3.915310] RBP: ffff880012499c90 R08: 0000000000000002 R09: 0000000000000000 [ 3.915310] R10: 0000000000000148 R11: 0000000000000000 R12: 0000000000000148 [ 3.915310] R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000 [ 3.915310] FS: 0000000000000000(0000) GS:ffff880013c00000(0000) knlGS:0000000000000000 [ 3.915310] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 3.915310] CR2: 0000000000000148 CR3: 0000000002605000 CR4: 00000000000406e0 [ 3.915310] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 3.915310] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 3.915310] Process swapper (pid: 1, threadinfo ffff880012498000, task ffff880012490000) [ 3.915310] Stack: [ 3.915310] ffff880012490000 ffffffff81e6fd38 ffffffff00000000 0000000000000000 [ 3.915310] 0000000000000148 0000000012499c08 ffffffff00000000 000000000000002e [ 3.915310] 0000000000000001 ffff880012499ce0 ffffffff8161620e 0000000000000000 [ 3.915310] Call Trace: [ 3.915310] [<ffffffff81e6fd38>] ? retint_restore_args+0x13/0x13 [ 3.915310] [<ffffffff8161620e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 3.915310] [<ffffffff81e6fd38>] ? retint_restore_args+0x13/0x13 [ 3.915310] [<ffffffff81af8883>] ? iio_dummy_evgen_get_irq+0x33/0x8a [ 3.915310] [<ffffffff810b4255>] lock_acquire+0x8a/0xa7 [ 3.915310] [<ffffffff81af8883>] ? iio_dummy_evgen_get_irq+0x33/0x8a [ 3.915310] [<ffffffff81e6db81>] __mutex_lock_common+0x63/0x491 [ 3.915310] [<ffffffff81af8883>] ? iio_dummy_evgen_get_irq+0x33/0x8a [ 3.915310] [<ffffffff810b474d>] ? debug_check_no_locks_freed+0x135/0x14a [ 3.915310] [<ffffffff810b2c3a>] ? lock_is_held+0x92/0x9d [ 3.915310] [<ffffffff81e6dfe5>] mutex_lock_nested+0x36/0x3b [ 3.915310] [<ffffffff81af8883>] iio_dummy_evgen_get_irq+0x33/0x8a [ 3.915310] [<ffffffff81af8594>] iio_simple_dummy_events_register+0x1b/0x69 [ 3.915310] [<ffffffff82ad4a91>] iio_dummy_init+0x105/0x18d [ 3.915310] [<ffffffff82ad498c>] ? iio_init+0x7d/0x7d [ 3.915310] [<ffffffff82a8dc02>] do_one_initcall+0x7a/0x135 [ 3.915310] [<ffffffff82a8dda7>] kernel_init+0xea/0x16f [ 3.915310] [<ffffffff81e727c4>] kernel_thread_helper+0x4/0x10 [ 3.915310] [<ffffffff81e6fd38>] ? retint_restore_args+0x13/0x13 [ 3.915310] [<ffffffff82a8dcbd>] ? do_one_initcall+0x135/0x135 [ 3.915310] [<ffffffff81e727c0>] ? gs_change+0x13/0x13 [ 3.915310] Code: 95 50 ff ff ff 74 24 e8 1f 3f 56 00 85 c0 0f 84 4e 0d 00 00 be cf 0b 00 00 83 3d 63 7c 58 02 00 0f 85 3c 0d 00 00 e9 c1 0c 00 00 [ 3.915310] 81 3a a0 17 ca 82 b8 01 00 00 00 44 0f 44 e8 83 fe 01 77 0c [ 3.915310] RIP [<ffffffff810b3008>] __lock_acquire+0xac/0xe50 [ 3.915310] RSP <ffff880012499bc0> [ 3.915310] CR2: 0000000000000148 Acked-by:
Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by:
Sasha Levin <levinsasha928@gmail.com> Signed-off-by:
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Lars-Peter Clausen authored
Quite a few iio drivers provide no MODULE_DEVICE_TABLE or MODULE_ALIAS or only provide a MODULE_ALIAS while they have support for multiple device ids. This prevents auto module loading from working correctly. This patch fixes it by adding the missing MODULE_DEVICE_TABLEs and MODULE_ALIAS'. Signed-off-by:
Lars-Peter Clausen <lars@metafoo.de> Acked-by:
Jonathan Cameron <jic23@kernel.org> Signed-off-by:
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Lars-Peter Clausen authored
Signed-off-by:
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Lars-Peter Clausen authored
Signed-off-by:
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Lars-Peter Clausen authored
Signed-off-by:
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Paul Bolle authored
Commit e6477000 ("staging:iio:dummy Add event support + fake event generator") added "select IIO_SIMPLE_DUMMY_EVGEN if [...]". But there is no Kconfig symbol named IIO_SIMPLE_DUMMY_EVGEN. The select statement for that symbol is a nop. Drop it. Signed-off-by:
Paul Bolle <pebolle@tiscali.nl> Acked-by:
Jonathan Cameron <jic23@camd.ac.uk> Signed-off-by:
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Lars-Peter Clausen authored
The AD5662 is compatible to the AD5660, but uses an external reference instead of an internal. Signed-off-by:
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Lars-Peter Clausen authored
This patch adds support for the Analog Devices AD5421 Loop-Powered, 4mA to 20mA DAC. Signed-off-by:
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Lars-Peter Clausen authored
Make sure we only use the allotted space for channel numbers in the event mask and do not let them override other fields. Since negative values are valid channel number, cast the channel number to signed when extracting it from an event mask. Signed-off-by:
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Lars-Peter Clausen authored
Some devices have fixed thresholds which can not be modified so make the write_event_value callback optional, so the drivers for these devices do not have to implement a boilerplate no-op callback. Signed-off-by:
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Dan Carpenter authored
ad5360_get_channel_vref() returns an int and scale_uv should be the same. Making it unsigned here breaks the error handling. Signed-off-by:
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Dan Carpenter authored
regulator_get_voltage() returns an int so "scale_uv" should be an int. Making it unsigned here breaks the error handling. Signed-off-by:
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Jonathan Cameron authored
Internally the fact that say scale is shared across channels is actually of remarkably little interest. Hence lets not store it. Numerous devices have weird combinations of channels sharing scale anyway so it is not as though this was really telling us much. Note however that we do still use the shared sysfs attrs thus massively reducing the number of attrs in complex drivers. Side effect is that certain drivers that were abusing this (mostly my work) needed to do a few more checks on what the channel they are being queried on actually is. This is also helpful for in kernel interfaces where we just want to query the scale and don't care whether it is shared with other channels or not. Signed-off-by:
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Lars-Peter Clausen authored
Currently the iio framework uses bitmasks for the address field of channel info attributes. This is for historical reasons and no longer required since it will only ever query a single info attribute at once. This patch changes the code to use the non-shifted iio_chan_info_enum values for the info attribute address. Signed-off-by:
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Lars-Peter Clausen authored
Document the different parameters of the IIO_EVENT_CODE macro and friends. While we are at it standardise the name of channel type parameter. Signed-off-by:
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Lars-Peter Clausen authored
Since we want to export struct iio_event_data to userspace use the userspace integer types. Also add a include to linux/types.h. Signed-off-by:
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Jonathan Cameron authored
Issue brought up by Lars-Peter Clausen. This is a varient of what he suggested. io/iio.h for driver stuff (has to include types.h) Sub files for the bits drivers may or may not use iio/sysfs.h iio/buffer.h (contents of current buffer_generic.h) (obviously anything offering events will need events.h as well) iio/types.h for the enums that matter to both iio_chan_type, iio_modifier iio/events.h for the event code stuff IIO_EVENT_CODE and friends. + everything in chrdev.h So this is the stuff that userspace cares about. Also include iio_event_type, iio_event_direction Thus iio drivers include iio.h + as required events.h sysfs.h buffer.h in kernel users (once that interface is merged) will need inkern.h which will pull in types.h Userspace will need just events.h (which pulls in types.h) to get everything they need to know about. Buffer userspace access doesn't currently need any core defines. All information about the data format is passed through sysfs. Signed-off-by:
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Greg Kroah-Hartman authored
This was introduced in commit b4641336 (iio: fix a leak due to improper use of anon_inode_getfd()) Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by:
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Jonathan Cameron authored
Logic bug meant the chrdev would fail to open if there was no buffer support in a driver or in the core. This meant the ioctl to get the event chrdev would fail and hence events were not available. V2: change error to -EINVAL to mark as unsuitable for reading rather than not there. Both are true depending on how you look at it. Signed-off-by:
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Lars-Peter Clausen authored
iio_utils.h uses opendir and friends which need dirent.h Signed-off-by:
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Lars-Peter Clausen authored
Make sure that the userspace buffer is large enough to hold a iio_event_data struct before writing to it. Signed-off-by:
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Jonathan Cameron authored
The logic building the name had a small bug where it did not verify if it was generic before applying the modifier. Signed-off-by:
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Jonathan Cameron authored
Both of these are decidedly silly bugs show up whilst testing completely different code paths. Signed-off-by:
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Jonathan Cameron authored
I really don't want to think about how this bit got in there. It allocates some storage - copies something into it then frees it without making use of it. Oops. Signed-off-by:
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Jonathan Cameron authored
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Jonathan Cameron authored
Postenable and predisable are called via buffer->ops so don't need to check if buffer exists. The return value of iio_device_register_trigger_consumer is always zero and it isn't checked anyway so get rid of it. Signed-off-by:
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Maxin B. John authored
Signed-off-by:
Maxin B. John <maxin.john@gmail.com> Reviewed-by:
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Jonathan Cameron authored
Bug has been fixed for some time in the outofstaging tree, but didn't propogate back to here. Signed-off-by:
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