linux-kernel - [PATCH v2 1/2] scsi: hisi_sas: Remove unnecessary devm

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Date:   Tue, 12 Jan 2021 00:10:57 +0100
From:   Bean Huo <huobean@...il.com>
To:     alim.akhtar@...sung.com, avri.altman@....com,
        john.garry@...wei.com, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, ebiggers@...gle.com, satyat@...gle.com,
        shipujin.t@...il.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bean Huo <beanhuo@...ron.com>
Subject: [PATCH v2 1/2] scsi: hisi_sas: Remove unnecessary devm_kfree

From: Bean Huo <beanhuo@...ron.com>

The memory allocated with devm_kzalloc() is freed automatically
no need to explicitly call devm_kfree.

Signed-off-by: Bean Huo <beanhuo@...ron.com>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 28 +-------------------------
 1 file changed, 1 insertion(+), 27 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 91a7286e8102..5600411a0820 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -4172,30 +4172,6 @@ static void debugfs_work_handler_v3_hw(struct work_struct *work)
 	hisi_hba->debugfs_dump_index++;
 }
 
-static void debugfs_release_v3_hw(struct hisi_hba *hisi_hba, int dump_index)
-{
-	struct device *dev = hisi_hba->dev;
-	int i;
-
-	devm_kfree(dev, hisi_hba->debugfs_iost_cache[dump_index].cache);
-	devm_kfree(dev, hisi_hba->debugfs_itct_cache[dump_index].cache);
-	devm_kfree(dev, hisi_hba->debugfs_iost[dump_index].iost);
-	devm_kfree(dev, hisi_hba->debugfs_itct[dump_index].itct);
-
-	for (i = 0; i < hisi_hba->queue_count; i++)
-		devm_kfree(dev, hisi_hba->debugfs_dq[dump_index][i].hdr);
-
-	for (i = 0; i < hisi_hba->queue_count; i++)
-		devm_kfree(dev,
-			   hisi_hba->debugfs_cq[dump_index][i].complete_hdr);
-
-	for (i = 0; i < DEBUGFS_REGS_NUM; i++)
-		devm_kfree(dev, hisi_hba->debugfs_regs[dump_index][i].data);
-
-	for (i = 0; i < hisi_hba->n_phy; i++)
-		devm_kfree(dev, hisi_hba->debugfs_port_reg[dump_index][i].data);
-}
-
 static const struct hisi_sas_debugfs_reg *debugfs_reg_array_v3_hw[DEBUGFS_REGS_NUM] = {
 	[DEBUGFS_GLOBAL] = &debugfs_global_reg,
 	[DEBUGFS_AXI] = &debugfs_axi_reg,
@@ -4206,7 +4182,7 @@ static int debugfs_alloc_v3_hw(struct hisi_hba *hisi_hba, int dump_index)
 {
 	const struct hisi_sas_hw *hw = hisi_hba->hw;
 	struct device *dev = hisi_hba->dev;
-	int p, c, d, r, i;
+	int p, c, d, r;
 	size_t sz;
 
 	for (r = 0; r < DEBUGFS_REGS_NUM; r++) {
@@ -4286,8 +4262,6 @@ static int debugfs_alloc_v3_hw(struct hisi_hba *hisi_hba, int dump_index)
 
 	return 0;
 fail:
-	for (i = 0; i < hisi_sas_debugfs_dump_count; i++)
-		debugfs_release_v3_hw(hisi_hba, i);
 	return -ENOMEM;
 }
 
-- 
2.17.1