linux-hardening - [PATCH] pstore/zone: Don't clear memory twice

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Date: Sat,  9 Mar 2024 09:24:27 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Kees Cook <keescook@...omium.org>,
	Tony Luck <tony.luck@...el.com>,
	"Guilherme G. Piccoli" <gpiccoli@...lia.com>
Cc: linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>,
	linux-hardening@...r.kernel.org
Subject: [PATCH] pstore/zone: Don't clear memory twice

There is no need to call memset(..., 0, ...) on memory allocated by
kcalloc(). It is already zeroed.

Remove the redundant call.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 fs/pstore/zone.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/pstore/zone.c b/fs/pstore/zone.c
index abca117725c8..694db616663f 100644
--- a/fs/pstore/zone.c
+++ b/fs/pstore/zone.c
@@ -1217,7 +1217,6 @@ static struct pstore_zone **psz_init_zones(enum pstore_type_id type,
 		pr_err("allocate for zones %s failed\n", name);
 		return ERR_PTR(-ENOMEM);
 	}
-	memset(zones, 0, c * sizeof(*zones));
 
 	for (i = 0; i < c; i++) {
 		zone = psz_init_zone(type, off, record_size);
-- 
2.44.0