From 94565e95e247c188fed4d3da1034402f3fb297de Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Sat, 21 Oct 2023 00:52:57 +0200 Subject: [PATCH] drm/ssd130x: Fix possible uninitialized usage of crtc_state variable Avoid a possible uninitialized use of the crtc_state variable in function ssd132x_primary_plane_atomic_check() and avoid the following Smatch warn: drivers/gpu/drm/solomon/ssd130x.c:921 ssd132x_primary_plane_atomic_check() error: uninitialized symbol 'crtc_state'. Fixes: fdd591e00a9c ("drm/ssd130x: Add support for the SSD132x OLED controller family") Reported-by: Dan Carpenter Closes: https://lore.kernel.org/dri-devel/7dd6ca45-8263-44fe-a318-2fd9d761425d@moroto.mountain/ Signed-off-by: Javier Martinez Canillas Acked-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20231020225338.1686974-1-javierm@redhat.com (cherry picked from commit 9e4db199e66d427c50458f4d72734cc4f0b92948) Signed-off-by: Javier Martinez Canillas --- drivers/gpu/drm/solomon/ssd130x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c index 32f0857aec9f..e0174f82e353 100644 --- a/drivers/gpu/drm/solomon/ssd130x.c +++ b/drivers/gpu/drm/solomon/ssd130x.c @@ -910,7 +910,7 @@ static int ssd132x_primary_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane); struct ssd130x_plane_state *ssd130x_state = to_ssd130x_plane_state(plane_state); struct drm_crtc *crtc = plane_state->crtc; - struct drm_crtc_state *crtc_state; + struct drm_crtc_state *crtc_state = NULL; const struct drm_format_info *fi; unsigned int pitch; int ret;