[HPDD-discuss] [PATCH 08/12] staging: lustre: mgc: 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(a)lip6.fr&gt; --- drivers/staging/lustre/lustre/mgc/mgc_request.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff -u -p a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c --- a/drivers/staging/lustre/lustre/mgc/mgc_request.c +++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c @@ -1128,7 +1128,7 @@ static int mgc_apply_recover_logs(struct LASSERT(cfg->cfg_sb == cfg->cfg_instance); inst = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS); - if (inst == NULL) + if (!inst) return -ENOMEM; if (!IS_SERVER(lsi)) { @@ -1493,7 +1493,7 @@ static int mgc_process_cfg_log(struct ob lsi = s2lsi(cld->cld_cfg.cfg_sb); env = kzalloc(sizeof(*env), GFP_NOFS); - if (env == NULL) + if (!env) return -ENOMEM; rc = lu_env_init(env, LCT_MG_THREAD);