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authorJiri Slaby <jirislaby@gmail.com>2009-07-14 01:20:21 +0400
committerDave Airlie <airlied@linux.ie>2009-07-15 09:56:12 +0400
commit845792d940f5755b7a7837c450a71d9e831a13e2 (patch)
tree92b4aee24f19c6522e17e2b2b026ea1128389c93 /drivers/gpu/drm/drm_gem.c
parentd25e3a6faa82eeaa6e5487c2d2e27cfd938ed108 (diff)
downloadlinux-845792d940f5755b7a7837c450a71d9e831a13e2.tar.xz
drm: drm_gem, check kzalloc retval
Check kzalloc retval against NULL in drm_gem_object_alloc and bail out appropriately. While at it merge the fail paths and jump to them by gotos at the end of the function. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
-rw-r--r--drivers/gpu/drm/drm_gem.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 8104ecaea26f..ffe8f4394d50 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -134,26 +134,29 @@ drm_gem_object_alloc(struct drm_device *dev, size_t size)
BUG_ON((size & (PAGE_SIZE - 1)) != 0);
obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+ if (!obj)
+ goto free;
obj->dev = dev;
obj->filp = shmem_file_setup("drm mm object", size, VM_NORESERVE);
- if (IS_ERR(obj->filp)) {
- kfree(obj);
- return NULL;
- }
+ if (IS_ERR(obj->filp))
+ goto free;
kref_init(&obj->refcount);
kref_init(&obj->handlecount);
obj->size = size;
if (dev->driver->gem_init_object != NULL &&
dev->driver->gem_init_object(obj) != 0) {
- fput(obj->filp);
- kfree(obj);
- return NULL;
+ goto fput;
}
atomic_inc(&dev->object_count);
atomic_add(obj->size, &dev->object_memory);
return obj;
+fput:
+ fput(obj->filp);
+free:
+ kfree(obj);
+ return NULL;
}
EXPORT_SYMBOL(drm_gem_object_alloc);