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intel: Add a null pointer check before dereferencing the pointer 

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Anuj Phogat 2013-04-16 10:34:43 -07:00
parent b03f6de63b
commit 484b89ace9
1 changed files with 9 additions and 0 deletions
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9
src/mesa/drivers/dri/intel/intel_screen.c
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@ -368,6 +368,9 @@ intel_create_image_from_name(__DRIscreen *screen,
int cpp;
image = intel_allocate_image(format, loaderPrivate);
if (image == NULL)
return NULL;
if (image->format == MESA_FORMAT_NONE)
cpp = 1;
else
@ -504,6 +507,9 @@ intel_create_image(__DRIscreen *screen,
}
image = intel_allocate_image(format, loaderPrivate);
if (image == NULL)
return NULL;
cpp = _mesa_get_format_bytes(image->format);
image->region =
intel_region_alloc(intelScreen, tiling, cpp, width, height, true);
@ -707,6 +713,9 @@ intel_from_planar(__DRIimage *parent, int plane, void *loaderPrivate)
stride = parent->strides[index];
image = intel_allocate_image(dri_format, loaderPrivate);
if (image == NULL)
return NULL;
if (offset + height * stride > parent->region->bo->size) {
_mesa_warning(NULL, "intel_create_sub_image: subimage out of bounds");
free(image);