diff options
| author | Takashi Iwai <tiwai@suse.de> | 2022-08-04 10:58:24 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-08-10 11:06:58 +0300 |
| commit | 0f7dc324b2e9e55db9323302f944fd952dbed967 (patch) | |
| tree | 5d24d391d31323f20b1c90751ca639ce7dfe5011 /drivers/gpu/drm/udl/udl_modeset.c | |
| parent | acd45c56790a3b558b0b0081678a20b0a0d89b0f (diff) | |
| download | linux-0f7dc324b2e9e55db9323302f944fd952dbed967.tar.xz | |
drm/udl: Sync pending URBs at suspend / disconnect
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
Diffstat (limited to 'drivers/gpu/drm/udl/udl_modeset.c')
| -rw-r--r-- | drivers/gpu/drm/udl/udl_modeset.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c index e67c40a48fb4..50025606b6ad 100644 --- a/drivers/gpu/drm/udl/udl_modeset.c +++ b/drivers/gpu/drm/udl/udl_modeset.c @@ -408,6 +408,8 @@ udl_simple_display_pipe_disable(struct drm_simple_display_pipe *pipe) buf = udl_dummy_render(buf); udl_submit_urb(dev, urb, buf - (char *)urb->transfer_buffer); + + udl_sync_pending_urbs(dev); } static void |