[patch 2/6] drivers/gpu/drm/nouveau/nouveau_grctx.c: correct NULL test

[<ak...@li...>]

From: Julia Lawall <ju...@di...>

Test the just-allocated value for NULL rather than some other value.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,y;
statement S;
@@

x = \(kmalloc\|kcalloc\|kzalloc\)(...);
(
if ((x) == NULL) S
|
if (
-   y
+   x
       == NULL)
 S
)
// </smpl>

Signed-off-by: Julia Lawall <ju...@di...>
Cc: David Airlie <ai...@li...>
Cc: Ben Skeggs <bs...@re...>
Signed-off-by: Andrew Morton <ak...@li...>
---

 drivers/gpu/drm/nouveau/nouveau_grctx.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -puN drivers/gpu/drm/nouveau/nouveau_grctx.c~drivers-gpu-drm-nouveau-nouveau_grctxc-correct-null-test drivers/gpu/drm/nouveau/nouveau_grctx.c
--- a/drivers/gpu/drm/nouveau/nouveau_grctx.c~drivers-gpu-drm-nouveau-nouveau_grctxc-correct-null-test
+++ a/drivers/gpu/drm/nouveau/nouveau_grctx.c
@@ -97,8 +97,8 @@ nouveau_grctx_prog_load(struct drm_devic
 		}
 
 		pgraph->ctxvals = kmalloc(fw->size, GFP_KERNEL);
-		if (!pgraph->ctxprog) {
-			NV_ERROR(dev, "OOM copying ctxprog\n");
+		if (!pgraph->ctxvals) {
+			NV_ERROR(dev, "OOM copying ctxvals\n");
 			release_firmware(fw);
 			nouveau_grctx_fini(dev);
 			return -ENOMEM;
_