linux-kernel - [PATCH v2] scsi: elx: efct: Avoid a useless memset

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>] [day] [month] [year] [list]

Message-Id: <9be7d5beb437583f8d975d168ac5c3e32fb6e465.1639158677.git.christophe.jaillet@wanadoo.fr>
Date:   Fri, 10 Dec 2021 18:53:35 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     james.smart@...adcom.com, ram.vegesna@...adcom.com,
        jejb@...ux.ibm.com, martin.petersen@...cle.com, hare@...e.de,
        dwagner@...e.de
Cc:     linux-scsi@...r.kernel.org, target-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH v2] scsi: elx: efct: Avoid a useless memset

'io->sgl' is kzalloced just a few lines above. There is no need to memset
it another time.

While at it change a kzalloc into an equivalent kcalloc to increase the
semantic and avoid an open coded arithmetic in a memory allocation
statement.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
v1 --> v2: s/kzalloc/kcalloc/

 drivers/scsi/elx/efct/efct_io.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/elx/efct/efct_io.c b/drivers/scsi/elx/efct/efct_io.c
index 71e21655916a..109483f3e3df 100644
--- a/drivers/scsi/elx/efct/efct_io.c
+++ b/drivers/scsi/elx/efct/efct_io.c
@@ -56,13 +56,12 @@ efct_io_pool_create(struct efct *efct, u32 num_sgl)
 		}
 
 		/* Allocate SGL */
-		io->sgl = kzalloc(sizeof(*io->sgl) * num_sgl, GFP_KERNEL);
+		io->sgl = kcalloc(num_sgl, sizeof(*io->sgl), GFP_KERNEL);
 		if (!io->sgl) {
 			efct_io_pool_free(io_pool);
 			return NULL;
 		}
 
-		memset(io->sgl, 0, sizeof(*io->sgl) * num_sgl);
 		io->sgl_allocated = num_sgl;
 		io->sgl_count = 0;
 
-- 
2.32.0