scsi: lpfc: fix kzalloc-simple.cocci warnings

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@gmail.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index d50c481..2bf5ad3 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -2227,7 +2227,7 @@ lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
        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 @@ lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
                                "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 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
                        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 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
                                                "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;