drivers/gpu/drm/nouveau/nouveau_grctx.c: correct NULL test

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 <julia@diku.dk>
Cc: David Airlie <airlied@linux.ie>
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nouveau_grctx.c b/drivers/gpu/drm/nouveau/nouveau_grctx.c
index 419f4c2b3b89e529075f1b8afe077ba504b7e20f..c7ebec696747266f0c413a9b92ec368bb832e727 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_grctx.c
+++ b/drivers/gpu/drm/nouveau/nouveau_grctx.c
@@ -97,8 +97,8 @@ nouveau_grctx_prog_load(struct drm_device *dev)
                }
 
                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;