diff options
| author | Chuhong Yuan <hslester96@gmail.com> | 2020-12-03 17:42:48 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2020-12-03 18:25:37 +0300 |
| commit | 0a260e731d6c4c17547ac275a2cde888a9eb4a3d (patch) | |
| tree | 09ce913c457d77baf37834879d34dc9dd6cf3d0b /drivers/gpu/drm/drm_fb_helper.c | |
| parent | 15ccc39b3aab667c6fa131206f01f31bfbccdf6a (diff) | |
| download | linux-0a260e731d6c4c17547ac275a2cde888a9eb4a3d.tar.xz | |
drm/fb-helper: Add missed unlocks in setcmap_legacy()
setcmap_legacy() does not call drm_modeset_unlock_all() in some exits,
add the missed unlocks with goto to fix it.
Fixes: 964c60063bff ("drm/fb-helper: separate the fb_setcmap helper into atomic and legacy paths")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201203144248.418281-1-hslester96@gmail.com
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 4b8119510687..e82db0f4e771 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -946,11 +946,15 @@ static int setcmap_legacy(struct fb_cmap *cmap, struct fb_info *info) drm_modeset_lock_all(fb_helper->dev); drm_client_for_each_modeset(modeset, &fb_helper->client) { crtc = modeset->crtc; - if (!crtc->funcs->gamma_set || !crtc->gamma_size) - return -EINVAL; + if (!crtc->funcs->gamma_set || !crtc->gamma_size) { + ret = -EINVAL; + goto out; + } - if (cmap->start + cmap->len > crtc->gamma_size) - return -EINVAL; + if (cmap->start + cmap->len > crtc->gamma_size) { + ret = -EINVAL; + goto out; + } r = crtc->gamma_store; g = r + crtc->gamma_size; @@ -963,8 +967,9 @@ static int setcmap_legacy(struct fb_cmap *cmap, struct fb_info *info) ret = crtc->funcs->gamma_set(crtc, r, g, b, crtc->gamma_size, NULL); if (ret) - return ret; + goto out; } +out: drm_modeset_unlock_all(fb_helper->dev); return ret; |