[Mesa-dev] [PATCH 2/3] st/dri: NULL check before deref DRI loader .getCapability
Emil Velikov
emil.l.velikov at gmail.com
Mon Jul 31 13:19:12 UTC 2017
From: Emil Velikov <emil.velikov at collabora.com>
One could have vX+1 which introduces another entrypoint without
implementing older ones.
Fixes: 1bf703e4ea5 ("dri_interface,egl,gallium: only expose RGBA visuals
on Android")
Cc: Marek Olšák <maraeo at gmail.com>
Signed-off-by: Emil Velikov <emil.velikov at collabora.com>
---
src/gallium/state_trackers/dri/dri_screen.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/gallium/state_trackers/dri/dri_screen.c b/src/gallium/state_trackers/dri/dri_screen.c
index 0442a2b6667..6b8b8080aff 100644
--- a/src/gallium/state_trackers/dri/dri_screen.c
+++ b/src/gallium/state_trackers/dri/dri_screen.c
@@ -130,10 +130,12 @@ dri_loader_get_cap(struct dri_screen *screen, enum dri_loader_cap cap)
const __DRIdri2LoaderExtension *dri2_loader = screen->sPriv->dri2.loader;
const __DRIimageLoaderExtension *image_loader = screen->sPriv->image.loader;
- if (dri2_loader && dri2_loader->base.version >= 4)
+ if (dri2_loader && dri2_loader->base.version >= 4 &&
+ dri2_loader->getCapability)
return dri2_loader->getCapability(cap);
- if (image_loader && image_loader->base.version >= 2)
+ if (image_loader && image_loader->base.version >= 2 &&
+ image_loader->getCapability)
return image_loader->getCapability(cap);
return 0;
--
2.13.3
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