Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Geert Uytterhoeven <geert@linux-m68k.org>
To:     Robin van der Gracht <robin@protonic.nl>,
        Miguel Ojeda <ojeda@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Paul Burton <paulburton@kernel.org>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Pavel Machek <pavel@ucw.cz>, Marek Behun <marek.behun@nic.cz>,
        devicetree@vger.kernel.org, linux-leds@vger.kernel.org,
        linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
        Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH v6 07/19] auxdisplay: linedisp: Use kmemdup_nul() helper
Date:   Tue, 14 Sep 2021 16:38:23 +0200
Message-Id: <20210914143835.511051-8-geert@linux-m68k.org>
In-Reply-To: <20210914143835.511051-1-geert@linux-m68k.org>
References: <20210914143835.511051-1-geert@linux-m68k.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Use the existing kmemdup_nul() helper instead of open-coding the same
operation.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
v6:
  - No changes,

v5:
  - No changes,

v4:
  - No changes,

v3:
  - No changes,

v2:
  - No changes.
---
 drivers/auxdisplay/line-display.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/auxdisplay/line-display.c b/drivers/auxdisplay/line-display.c
index 4b97c20ac0b381ee..3f35199bc39f511f 100644
--- a/drivers/auxdisplay/line-display.c
+++ b/drivers/auxdisplay/line-display.c
@@ -91,13 +91,10 @@ static int linedisp_display(struct linedisp *linedisp, const char *msg,
 		return 0;
 	}
 
-	new_msg = kmalloc(count + 1, GFP_KERNEL);
+	new_msg = kmemdup_nul(msg, count, GFP_KERNEL);
 	if (!new_msg)
 		return -ENOMEM;
 
-	memcpy(new_msg, msg, count);
-	new_msg[count] = 0;
-
 	kfree(linedisp->message);
 
 	linedisp->message = new_msg;
-- 
2.25.1