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drm/crtc_helper: avoid NULL-pointer dereference when encoder is NULL
author
Maarten Maathuis
<madman2003@gmail.com>
Tue, 1 Sep 2009 01:39:04 +0000
(
03:39
+0200)
committer
Dave Airlie
<airlied@linux.ie>
Wed, 2 Sep 2009 06:28:56 +0000
(16:28 +1000)
Signed-off-by: Maarten Maathuis <madman2003@gmail.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
drivers/gpu/drm/drm_crtc_helper.c
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diff --git
a/drivers/gpu/drm/drm_crtc_helper.c
b/drivers/gpu/drm/drm_crtc_helper.c
index
db0237d
..
e7e6c25
100644
(file)
--- a/
drivers/gpu/drm/drm_crtc_helper.c
+++ b/
drivers/gpu/drm/drm_crtc_helper.c
@@
-842,7
+842,8
@@
int drm_crtc_helper_set_config(struct drm_mode_set *set)
/* If the encoder is reused for another connector, then
* the appropriate crtc will be set later.
*/
- connector->encoder->crtc = NULL;
+ if (connector->encoder)
+ connector->encoder->crtc = NULL;
connector->encoder = new_encoder;
}
}