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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2019-01-19 01:43:43 +0900 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-01-24 10:47:38 +0100 |
| commit | b30b61ff6b1dc37f276cf56a8328b80086a3ffca (patch) | |
| tree | 33c38dcd818c10beb4aaefea56ed13e21536a09d /drivers/gpu/drm/i915/intel_guc_fw.c | |
| parent | 46f3ceaffa81e846677bca8668e0ad40e643cffd (diff) | |
| download | linux-b30b61ff6b1dc37f276cf56a8328b80086a3ffca.tar.bz2 | |
drm/vkms: Fix flush_work() without INIT_WORK().
syzbot is hitting a lockdep warning [1] because flush_work() is called
without INIT_WORK() after kzalloc() at vkms_atomic_crtc_reset().
Commit 6c234fe37c57627a ("drm/vkms: Implement CRC debugfs API") added
INIT_WORK() to only vkms_atomic_crtc_duplicate_state() side. Assuming
that lifecycle of crc_work is appropriately managed, fix this problem
by adding INIT_WORK() to vkms_atomic_crtc_reset() side.
[1] https://syzkaller.appspot.com/bug?id=a5954455fcfa51c29ca2ab55b203076337e1c770
Reported-and-tested-by: syzbot <syzbot+12f1b031b6da017e34f8@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Shayenne Moura <shayenneluzmoura@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1547829823-9877-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp
Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc_fw.c')
0 files changed, 0 insertions, 0 deletions