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

!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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index 7f208a6621e6c8bdce60889763e17256b297d3b0..204d512625607fa7e3fa483a0cd3f185f5bc45b2 100644 (file)
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -1202,7 +1202,7 @@ static int mdc_ioc_fid2path(struct obd_export *exp, struct getinfo_fid2path *gf)
        /* Key is KEY_FID2PATH + getinfo_fid2path description */
        keylen = cfs_size_round(sizeof(KEY_FID2PATH)) + sizeof(*gf);
        key = kzalloc(keylen, GFP_NOFS);
-       if (key == NULL)
+       if (!key)
                return -ENOMEM;
        memcpy(key, KEY_FID2PATH, sizeof(KEY_FID2PATH));
        memcpy(key + cfs_size_round(sizeof(KEY_FID2PATH)), gf, sizeof(*gf));
@@ -1605,7 +1605,7 @@ static int mdc_changelog_send_thread(void *csdata)
               cs->cs_fp, cs->cs_startrec);
 
        cs->cs_buf = kzalloc(KUC_CHANGELOG_MSG_MAXSIZE, GFP_NOFS);
-       if (cs->cs_buf == NULL) {
+       if (!cs->cs_buf) {
                rc = -ENOMEM;
                goto out;
        }
@@ -1934,7 +1934,7 @@ static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
                struct obd_quotactl *oqctl;
 
                oqctl = kzalloc(sizeof(*oqctl), GFP_NOFS);
-               if (oqctl == NULL) {
+               if (!oqctl) {
                        rc = -ENOMEM;
                        goto out;
                }