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drm/udl: Fix missing error code in udl_handle_damage() 

If udl_get_urb() fails then this should return a negative error code
but currently it returns success.

Fixes: 798ce3fe1c ("drm/udl: Begin/end access to imported buffers in damage-handler")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201113101502.GD168908@mwanda
This commit is contained in:
Dan Carpenter 2020-11-13 13:15:02 +03:00 committed by Thomas Zimmermann
parent 2c68640401
commit a7319c8f50
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/udl/udl_modeset.c
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@ -305,8 +305,10 @@ static int udl_handle_damage(struct drm_framebuffer *fb, int x, int y,
vaddr = map.vaddr; /* TODO: Use mapping abstraction properly */
urb = udl_get_urb(dev);
if (!urb)
if (!urb) {
ret = -ENOMEM;
goto out_drm_gem_shmem_vunmap;
}
cmd = urb->transfer_buffer;
for (i = clip.y1; i < clip.y2; i++) {