linux-kernel - [PATCH] scsi: pmcraid: Use dma_pool_zalloc rather than dma_pool

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190718181051.22882-1-gomonovych@gmail.com>
Date:   Thu, 18 Jul 2019 20:10:51 +0200
From:   Vasyl Gomonovych <gomonovych@...il.com>
To:     gomonovych@...il.com
Cc:     "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] scsi: pmcraid: Use dma_pool_zalloc rather than dma_pool_alloc

Use *_pool_zalloc rather than *_pool_alloc followed by memset with 0
The semantic patch that makes this change is available
in scripts/coccinelle/api/alloc/pool_zalloc-simple.cocci.

Signed-off-by: Vasyl Gomonovych <gomonovych@...il.com>
---
 drivers/scsi/pmcraid.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 71ff3936da4f945f3d8a798a8b2129ca3c07ec22..f79d7750934e629c6d6edc1a075205247889531d 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -4653,9 +4653,7 @@ static int pmcraid_allocate_control_blocks(struct pmcraid_instance *pinstance)
 		return -ENOMEM;
 
 	for (i = 0; i < PMCRAID_MAX_CMD; i++) {
-		pinstance->cmd_list[i]->ioa_cb =
-			dma_pool_alloc(
-				pinstance->control_pool,
+		pinstance->cmd_list[i]->ioa_cb = dma_pool_zalloc(pinstance->control_pool,
 				GFP_KERNEL,
 				&(pinstance->cmd_list[i]->ioa_cb_bus_addr));
 
@@ -4663,8 +4661,6 @@ static int pmcraid_allocate_control_blocks(struct pmcraid_instance *pinstance)
 			pmcraid_release_control_blocks(pinstance, i);
 			return -ENOMEM;
 		}
-		memset(pinstance->cmd_list[i]->ioa_cb, 0,
-			sizeof(struct pmcraid_control_block));
 	}
 	return 0;
 }
-- 
2.17.1