linux-kernel - [PATCH] tracing: Replace kzalloc with kcalloc

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: <20190115043408.GA23456@embeddedor>
Date:   Mon, 14 Jan 2019 22:34:08 -0600
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>
Cc:     linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] tracing: Replace kzalloc with kcalloc

Replace kzalloc() function with its 2-factor argument form, kcalloc().

This patch replaces cases of:

	kzalloc(a * b, gfp)

with:
	kcalloc(a * b, gfp)

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 kernel/trace/trace_probe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 9962cb5da8ac..57f0cbaf9c58 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -429,7 +429,7 @@ static int traceprobe_parse_probe_arg_body(char *arg, ssize_t *size,
 			 parg->count);
 	}
 
-	code = tmp = kzalloc(sizeof(*code) * FETCH_INSN_MAX, GFP_KERNEL);
+	code = tmp = kcalloc(FETCH_INSN_MAX, sizeof(*code), GFP_KERNEL);
 	if (!code)
 		return -ENOMEM;
 	code[FETCH_INSN_MAX - 1].op = FETCH_OP_END;
@@ -501,7 +501,7 @@ static int traceprobe_parse_probe_arg_body(char *arg, ssize_t *size,
 	code->op = FETCH_OP_END;
 
 	/* Shrink down the code buffer */
-	parg->code = kzalloc(sizeof(*code) * (code - tmp + 1), GFP_KERNEL);
+	parg->code = kcalloc(code - tmp + 1, sizeof(*code), GFP_KERNEL);
 	if (!parg->code)
 		ret = -ENOMEM;
 	else
-- 
2.20.1