Jun 20 2015

staging: lustre: lmv: 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/lmv/lmv_intent.c | 2 +-
 drivers/staging/lustre/lustre/lmv/lmv_obd.c    | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)
 
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_intent.c b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
index cb35f63..eebe45b 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_intent.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
@@ -100,7 +100,7 @@ static int lmv_intent_remote(struct obd_export *exp, void *lmm,
 	}
 
 	op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
-	if (op_data == NULL) {
+	if (!op_data) {
 		rc = -ENOMEM;
 		goto out;
 	}
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index ac5053c..5c058d0 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -716,7 +716,7 @@ repeat_fid2path:
 	if (remote_gf == NULL) {
 		remote_gf_size = sizeof(*remote_gf) + PATH_MAX;
 		remote_gf = kzalloc(remote_gf_size, GFP_NOFS);
-		if (remote_gf == NULL) {
+		if (!remote_gf) {
 			rc = -ENOMEM;
 			goto out_fid2path;
 		}
@@ -1398,7 +1398,7 @@ static int lmv_statfs(const struct lu_env *env, struct obd_export *exp,
 		return rc;
 
 	temp = kzalloc(sizeof(*temp), GFP_NOFS);
-	if (temp == NULL)
+	if (!temp)
 		return -ENOMEM;
 
 	for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
@@ -1730,7 +1730,7 @@ lmv_enqueue_remote(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
 	}
 
 	rdata = kzalloc(sizeof(*rdata), GFP_NOFS);
-	if (rdata == NULL) {
+	if (!rdata) {
 		rc = -ENOMEM;
 		goto out;
 	}

qlambert