Jun 20 2015

staging: lustre: lclient: Use !x to check for kzalloc failure 

Author: Julia Lawall <Julia.Lawall@lip6.fr>

!x is more normal for kzalloc failure in the kernel.

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

// 
@@
expression x;
statement S1, S2;
@@

x = kzalloc(...);
if (
- x == NULL
+ !x
 ) S1 else S2
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Greg Kroah-Hartman 

---
 drivers/staging/lustre/lustre/lclient/lcommon_cl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
index e0c1cca..9053f81 100644
--- a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
+++ b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
@@ -203,7 +203,7 @@ struct lu_device *ccc_device_alloc(const struct lu_env *env,
 	int rc;
 
 	vdv = kzalloc(sizeof(*vdv), GFP_NOFS);
-	if (vdv == NULL)
+	if (!vdv)
 		return ERR_PTR(-ENOMEM);
 
 	lud = &vdv->cdv_cl.cd_lu_dev;

qlambert