1. 21 Jun, 2017 3 commits
  2. 20 Jun, 2017 15 commits
  3. 15 Jun, 2017 6 commits
  4. 14 Jun, 2017 10 commits
  5. 13 Jun, 2017 1 commit
  6. 12 Jun, 2017 1 commit
    • Hans Verkuil's avatar
      drm/vc4/vc4_bo.c: always set bo->resv · 24bb206f
      Hans Verkuil authored
      The bo->resv pointer could be NULL, leading to kernel oopses
      like the one below.
      
      This patch ensures that bo->resv is always set in vc4_create_object
      ensuring that it is never NULL.
      
      Thanks to Eric Anholt for pointing to the correct solution.
      
      [   19.738487] Unable to handle kernel NULL pointer dereference at virtual address 00000000
      [   19.746805] pgd = ffff8000275fc000
      [   19.750319] [00000000] *pgd=0000000000000000
      [   19.754715] Internal error: Oops: 96000004 [#1] PREEMPT SMP
      [   19.760369] Modules linked in: smsc95xx usbnet vc4 drm_kms_helper drm pwm_bcm2835 i2c_bcm2835 bcm2835_rng rng_core bcm2835_dma virt_dma
      [   19.772767] CPU: 0 PID: 1297 Comm: Xorg Not tainted 4.12.0-rc1-rpi3 #58
      [   19.779476] Hardware name: Raspberry Pi 3 Model B (DT)
      [   19.784688] task: ffff800028268000 task.stack: ffff800026c08000
      [   19.790705] PC is at ww_mutex_lock_interruptible+0x14/0xc0
      [   19.796329] LR is at vc4_submit_cl_ioctl+0x4fc/0x998 [vc4]
      ...
      [   20.240855] [<ffff0000088975f4>] ww_mutex_lock_interruptible+0x14/0xc0
      [   20.247528] [<ffff0000009b3ea4>] vc4_submit_cl_ioctl+0x4fc/0x998 [vc4]
      [   20.254372] [<ffff0000008f75f8>] drm_ioctl+0x180/0x438 [drm]
      [   20.260120] [<ffff00000821383c>] do_vfs_ioctl+0xa4/0x7d0
      [   20.265510] [<ffff000008213fe4>] SyS_ioctl+0x7c/0x98
      [   20.270550] [<ffff000008082f30>] el0_svc_naked+0x24/0x28
      [   20.275941] Code: d2800002 d5384103 910003fd f9800011 (c85ffc04)
      [   20.282527] ---[ end trace 1f6bd640ff32ae12 ]---
      Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
      Reviewed-by: default avatarEric Anholt <eric@anholt.net>
      Link: http://patchwork.freedesktop.org/patch/msgid/14e68768-6c92-2d74-92fd-196dbc50d8f7@xs4all.nl
      24bb206f
  7. 08 Jun, 2017 1 commit
  8. 07 Jun, 2017 3 commits