Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 07/12] staging: lustre: mdc: Use !x to check for kzalloc failure | Date | Sat, 20 Jun 2015 18:59:05 +0200 |
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!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/mdc/mdc_request.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff -u -p a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c --- 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_e /* 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(voi 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 cm struct obd_quotactl *oqctl; oqctl = kzalloc(sizeof(*oqctl), GFP_NOFS); - if (oqctl == NULL) { + if (!oqctl) { rc = -ENOMEM; goto out; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
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