On 10/11/2017 12:42 PM, Vasyl Gomonovych wrote:
drivers/scsi/lpfc/lpfc_debugfs.c:5460:22-29: WARNING: kzalloc should be used for phba -> nvmeio_trc, instead of kmalloc/memset
drivers/scsi/lpfc/lpfc_debugfs.c:2230:20-27: WARNING: kzalloc should be used for phba -> nvmeio_trc, instead of kmalloc/memset
Use kzalloc rather than kmalloc followed by memset with 0
Generated by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci
Signed-off-by: Vasyl Gomonovych <gomonovych@xxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_debugfs.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index d50c481..2bf5ad3 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -2227,7 +2227,7 @@
kfree(phba->nvmeio_trc);
/* Allocate new trace buffer and initialize */
- phba->nvmeio_trc = kmalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) *
+ phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) *
sz), GFP_KERNEL);
if (!phba->nvmeio_trc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -2235,8 +2235,6 @@
"nvmeio_trc buffer\n");
return -ENOMEM;
}
- memset(phba->nvmeio_trc, 0,
- (sizeof(struct lpfc_debugfs_nvmeio_trc) * sz));
atomic_set(&phba->nvmeio_trc_cnt, 0);
phba->nvmeio_trc_on = 0;
phba->nvmeio_trc_output_idx = 0;
@@ -5457,7 +5455,7 @@ static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc;
/* Allocate trace buffer and initialize */
- phba->nvmeio_trc = kmalloc(
+ phba->nvmeio_trc = kzalloc(
(sizeof(struct lpfc_debugfs_nvmeio_trc) *
phba->nvmeio_trc_size), GFP_KERNEL);
@@ -5467,9 +5465,6 @@ static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
"nvmeio_trc buffer\n");
goto nvmeio_off;
}
- memset(phba->nvmeio_trc, 0,
- (sizeof(struct lpfc_debugfs_nvmeio_trc) *
- phba->nvmeio_trc_size));
phba->nvmeio_trc_on = 1;
phba->nvmeio_trc_output_idx = 0;
phba->nvmeio_trc = NULL;
looks good.
Signed-off-by: James Smart <james.smart@xxxxxxxxxxxx>
