[PATCH xf86-video-ati 6/6] glamor: Return NullPixmap on failure to create shareable pixmap

[Michel Dänzer]

From: jimqu <Jim.Qu at amd.com>

If we were asked to create a shareable pixmap, it doesn't make sense
to return a pixmap which isn't shareable. Doing so caused trouble down
the line such as a crash with older versions of glamor when trying to
use GLX pixmaps of bpp < 32 via DRI2.

Signed-off-by: JimQu <jim.qu at amd.com>
(ported from amdgpu commit 2fcb7dadd3c71cd405cbbaafc777697538ca9c29)

Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 src/radeon_glamor.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/radeon_glamor.c b/src/radeon_glamor.c
index 6a12b33..cc2b1f2 100644
--- a/src/radeon_glamor.c
+++ b/src/radeon_glamor.c
@@ -262,7 +262,9 @@ fallback_glamor:
 	 */
 		xf86DrvMsg(scrn->scrnIndex, X_WARNING,
 			   "Failed to create textured DRI2/PRIME pixmap.");
-		return pixmap;
+
+		radeon_glamor_destroy_pixmap(pixmap);
+		return NullPixmap;
 	}
 	/* Create textured pixmap failed means glamor failed to
 	 * create a texture from current BO for some reasons. We turn
-- 
2.7.0