linux-kernel - [PATCH] scsi: fnic: Use kmalloc instead of vmalloc for a small memory allocation

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Date:   Thu, 23 Apr 2020 22:46:20 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     satishkh@...co.com, sebaddel@...co.com, kartilak@...co.com,
        jejb@...ux.ibm.com, martin.petersen@...cle.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] scsi: fnic: Use kmalloc instead of vmalloc for a small memory allocation

'struct fc_trace_flag_type' is just a few bytes long. There is no need
to allocate such a structure with vmalloc. Using kmalloc instead.

While at it, axe a useless test when freeing the memory.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/scsi/fnic/fnic_debugfs.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/fnic/fnic_debugfs.c b/drivers/scsi/fnic/fnic_debugfs.c
index 13f7d88d6e57..8d6ce3470594 100644
--- a/drivers/scsi/fnic/fnic_debugfs.c
+++ b/drivers/scsi/fnic/fnic_debugfs.c
@@ -58,8 +58,7 @@ int fnic_debugfs_init(void)
 						fnic_trace_debugfs_root);
 
 	/* Allocate memory to structure */
-	fc_trc_flag = (struct fc_trace_flag_type *)
-		vmalloc(sizeof(struct fc_trace_flag_type));
+	fc_trc_flag = kmalloc(sizeof(*fc_trc_flag), GFP_KERNEL);
 
 	if (fc_trc_flag) {
 		fc_trc_flag->fc_row_file = 0;
@@ -87,8 +86,7 @@ void fnic_debugfs_terminate(void)
 	debugfs_remove(fnic_trace_debugfs_root);
 	fnic_trace_debugfs_root = NULL;
 
-	if (fc_trc_flag)
-		vfree(fc_trc_flag);
+	kfree(fc_trc_flag);
 }
 
 /*
-- 
2.20.1