Kfree can cope with a null argument, so drop null tests. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression ptr; @@ - if (ptr != NULL) kfree(ptr); // </smpl> In the first case, the only cleanup needed is the unlock, so jump to that directly. Likewise, in the first two failure cases of ptlrpc_lprocfs_nrs_seq_write, no cleanup is needed, so just drop the goto and return directly. Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx> --- drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 26 ++++++-------------- 1 file changed, 9 insertions(+), 17 deletions(-) diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c index 1391784..aeceef5 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c @@ -510,7 +510,7 @@ static int ptlrpc_lprocfs_nrs_seq_show(struct seq_file *m, void *n) infos = kcalloc(num_pols, sizeof(*infos), GFP_NOFS); if (infos == NULL) { rc = -ENOMEM; - goto out; + goto unlock; } again: @@ -617,10 +617,8 @@ again: goto again; } -out: - if (infos) - kfree(infos); - + kfree(infos); +unlock: mutex_unlock(&nrs_core.nrs_mutex); return rc; @@ -650,16 +648,12 @@ static ssize_t ptlrpc_lprocfs_nrs_seq_write(struct file *file, char *token; int rc = 0; - if (count >= LPROCFS_NRS_WR_MAX_CMD) { - rc = -EINVAL; - goto out; - } + if (count >= LPROCFS_NRS_WR_MAX_CMD) + return -EINVAL; cmd = kzalloc(LPROCFS_NRS_WR_MAX_CMD, GFP_NOFS); - if (cmd == NULL) { - rc = -ENOMEM; - goto out; - } + if (cmd == NULL) + return -ENOMEM; /** * strsep() modifies its argument, so keep a copy */ @@ -716,8 +710,7 @@ default_queue: mutex_unlock(&nrs_core.nrs_mutex); out: - if (cmd_copy) - kfree(cmd_copy); + kfree(cmd_copy); return rc < 0 ? rc : count; } @@ -860,8 +853,7 @@ ptlrpc_lprocfs_svc_req_history_stop(struct seq_file *s, void *iter) { struct ptlrpc_srh_iterator *srhi = iter; - if (srhi != NULL) - kfree(srhi); + kfree(srhi); } static void * -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
