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egl_dri2: Fix segmentation fault

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The segmentation fault occurs when DRI2 is not loaded up and
dri2_setup_screen() function deferences dri2_dpy->dri2 (since it's NULL
at this point).

This patch fixes the segmentation fault by checking if dri2 pointer is
not NULL before deferencing it.

Signed-off-by: Paulo Alcantara <pcacjr@profusion.mobi>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Paulo Alcantara 2012-08-17 14:08:10 -03:00 • committed by Brian Paul
parent 90bd1d52bb
commit b41f36bde7
1 changed files with 1 additions and 1 deletions
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2
src/egl/drivers/dri2/egl_dri2.c
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@ -481,7 +481,7 @@ dri2_setup_screen(_EGLDisplay *disp)
assert(dri2_dpy->dri2 || dri2_dpy->swrast);
disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
if (dri2_dpy->dri2->base.version >= 3) {
if (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) {
disp->Extensions.KHR_create_context = EGL_TRUE;
if (dri2_dpy->robustness)