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compositor-drm: Don't try and scan out a SHM buffer directly
author
Rob Bradford
<rob@linux.intel.com>
Fri, 14 Sep 2012 22:02:47 +0000
(23:02 +0100)
committer
Ossama Othman
<ossama.othman@intel.com>
Fri, 19 Apr 2013 22:59:49 +0000
(15:59 -0700)
gbm_bo_import will fail to produce a valid bo since the buffer is an SHM
buffer. This cause a crash when the NULL bo returned by gbm_bo_import is
dereferenced later.
Signed-off-by: Rob Bradford <rob@linux.intel.com>
src/compositor-drm.c
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diff --git
a/src/compositor-drm.c
b/src/compositor-drm.c
index
f055118
..
127a6e5
100644
(file)
--- a/
src/compositor-drm.c
+++ b/
src/compositor-drm.c
@@
-316,6
+316,9
@@
drm_output_prepare_scanout_surface(struct weston_output *_output,
es->buffer == NULL)
return NULL;
+ if (wl_buffer_is_shm(es->buffer))
+ return NULL;
+
bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
es->buffer, GBM_BO_USE_SCANOUT);