diff options
| author | Philippe CORNU <philippe.cornu@st.com> | 2018-04-10 16:53:12 +0300 |
|---|---|---|
| committer | Philippe Cornu <philippe.cornu@st.com> | 2018-04-19 13:24:45 +0300 |
| commit | c20f5f69c898899027c3e573afaab837195895b6 (patch) | |
| tree | 0aeeab386166ead395057bb429f2cec01926ae94 /drivers/gpu/drm/stm | |
| parent | 25bb1a9de3cc36ea1fd2dc10f4a375571be0ff37 (diff) | |
| download | linux-c20f5f69c898899027c3e573afaab837195895b6.tar.xz | |
drm/stm: ltdc: fix warning in ltdc_crtc_update_clut()
Fix the warning
"warn: variable dereferenced before check 'crtc' (see line 390)"
by removing unnecessary checks as ltdc_crtc_update_clut() is
only called from ltdc_crtc_atomic_flush() where crtc and
crtc->state are not NULL.
Many thanks to Dan Carpenter for the bug report
https://lists.freedesktop.org/archives/dri-devel/2018-February/166918.html
Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: yannick fertre <yannick.fertre@st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180410135312.3553-1-philippe.cornu@st.com
Diffstat (limited to 'drivers/gpu/drm/stm')
| -rw-r--r-- | drivers/gpu/drm/stm/ltdc.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 061d2b6e5157..e3121d9e4230 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -392,9 +392,6 @@ static void ltdc_crtc_update_clut(struct drm_crtc *crtc) u32 val; int i; - if (!crtc || !crtc->state) - return; - if (!crtc->state->color_mgmt_changed || !crtc->state->gamma_lut) return; |