drm/udl: Sync pending URBs at suspend / disconnect

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We need to wait for finishing to process the all URBs after disabling
the pipe; otherwise pending URBs may stray at suspend/resume, leading
to a possible memory corruption in a worst case.

Tested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220804075826.27036-3-tiwai@suse.de

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Takashi Iwai 2022-08-04 09:58:24 +02:00 • committed by Thomas Zimmermann

parent acd45c5679

commit 0f7dc324b2

3 changed files with 20 additions and 0 deletions

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1

drivers/gpu/drm/udl/udl_drv.h

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17

drivers/gpu/drm/udl/udl_main.c

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2

drivers/gpu/drm/udl/udl_modeset.c

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