[PATCH 03/12] staging: lustre: lclient: Use !x to check for kzalloc failure

Julia Lawall
2015-06-20T16:59:01Z

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

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

// <smpl>
@@
expression x;
statement S1, S2;
@@

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

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
drivers/staging/lustre/lustre/lclient/lcommon_cl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff -u -p a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
--- 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
int rc;

vdv = kzalloc(sizeof(*vdv), GFP_NOFS);
- if (vdv = NULL)
+ if (!vdv)
return ERR_PTR(-ENOMEM);

lud = &vdv->cdv_cl.cd_lu_dev;