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drm/crtc_helper: avoid NULL-pointer dereference when encoder is NULL

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Signed-off-by: Maarten Maathuis <madman2003@gmail.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Maarten Maathuis
2009-09-01 03:39:04 +02:00
committed by Dave Airlie
parent 9c552dd793
commit ff6fdbed8f
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/drm_crtc_helper.c
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@@ -842,7 +842,8 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
/* If the encoder is reused for another connector, then /* If the encoder is reused for another connector, then
* the appropriate crtc will be set later. * the appropriate crtc will be set later.
*/ */
connector->encoder->crtc = NULL; if (connector->encoder)
connector->encoder->crtc = NULL;
connector->encoder = new_encoder; connector->encoder = new_encoder;
} }
} }