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authorStéphane Marchesin <marcheu@chromium.org>2013-01-28 15:04:00 -0800
committerStéphane Marchesin <marcheu@chromium.org>2013-01-29 11:15:22 -0800
commit67e7263e4567f36e59009a1ca076a2854a6c1b0e (patch)
tree5d267ce47a45c72ad9f4bcf18fbdeeeb18680043 /src/glx
parent70c5297439cc5401045ec842a6abeda118296f69 (diff)
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glx: Check that swap_buffers_reply is non-NULL before using it
Check that the return value from xcb_dri2_swap_buffers_reply is non-NULL before accessing the struct members. Note: This is a candidate for the 9.0 branch. Reviewed-by: Brian Paul <brianp@vmware.com>
Diffstat (limited to 'src/glx')
-rw-r--r--src/glx/dri2_glx.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index a51716f..78a2a42 100644
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -789,9 +789,11 @@ dri2XcbSwapBuffers(Display *dpy,
swap_buffers_reply =
xcb_dri2_swap_buffers_reply(c, swap_buffers_cookie, NULL);
- ret = merge_counter(swap_buffers_reply->swap_hi,
- swap_buffers_reply->swap_lo);
- free(swap_buffers_reply);
+ if (swap_buffers_reply) {
+ ret = merge_counter(swap_buffers_reply->swap_hi,
+ swap_buffers_reply->swap_lo);
+ free(swap_buffers_reply);
+ }
return ret;
}