From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Robin van der Gracht <robin@protonic.nl>,
Rob Herring <robh+dt@kernel.org>, Miguel Ojeda <ojeda@kernel.org>,
Paul Burton <paulburton@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Pavel Machek <pavel@ucw.cz>
Cc: 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 v2 07/18] auxdisplay: linedisp: Use kmemdup_nul() helper
Date: Fri, 25 Jun 2021 14:58:51 +0200 [thread overview]
Message-ID: <20210625125902.1162428-8-geert@linux-m68k.org> (raw)
In-Reply-To: <20210625125902.1162428-1-geert@linux-m68k.org>
Use the existing kmemdup_nul() helper instead of open-coding the same
operation.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
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
next prev parent reply other threads:[~2021-06-25 13:06 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-25 12:58 [PATCH v2 00/18] auxdisplay: ht16k33: Add character display support Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 01/18] uapi: Add <linux/map_to_14segment.h> Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 02/18] dt-bindings: auxdisplay: ht16k33: Document Adafruit segment displays Geert Uytterhoeven
2021-07-14 20:36 ` Rob Herring
2021-07-15 7:12 ` Geert Uytterhoeven
2021-07-15 14:32 ` Rob Herring
2021-07-15 15:06 ` Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 03/18] auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 04/18] auxdisplay: img-ascii-lcd: Add helper variable dev Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 05/18] auxdisplay: img-ascii-lcd: Convert device attribute to sysfs_emit() Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 06/18] auxdisplay: Extract character line display core support Geert Uytterhoeven
2021-06-25 23:35 ` kernel test robot
2021-06-28 10:17 ` Geert Uytterhoeven
2021-06-25 12:58 ` Geert Uytterhoeven [this message]
2021-06-25 12:58 ` [PATCH v2 08/18] auxdisplay: linedisp: Add support for changing scroll rate Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 09/18] auxdisplay: ht16k33: Connect backlight to fbdev Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 10/18] auxdisplay: ht16k33: Use HT16K33_FB_SIZE in ht16k33_initialize() Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 11/18] auxdisplay: ht16k33: Remove unneeded error check in keypad probe() Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 12/18] auxdisplay: ht16k33: Convert to simple i2c probe function Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 13/18] auxdisplay: ht16k33: Add helper variable dev Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 14/18] auxdisplay: ht16k33: Move delayed work Geert Uytterhoeven
2021-06-25 12:58 ` [PATCH v2 15/18] auxdisplay: ht16k33: Extract ht16k33_brightness_set() Geert Uytterhoeven
2021-06-25 12:59 ` [PATCH v2 16/18] auxdisplay: ht16k33: Extract frame buffer probing Geert Uytterhoeven
2021-06-25 12:59 ` [PATCH v2 17/18] auxdisplay: ht16k33: Add support for segment displays Geert Uytterhoeven
2021-06-25 12:59 ` [PATCH v2 18/18] auxdisplay: ht16k33: Add segment display LED support Geert Uytterhoeven
2021-06-25 20:39 ` Marek Behun
2021-06-25 20:40 ` Marek Behun
2021-06-28 9:21 ` Geert Uytterhoeven
2021-06-28 9:21 ` Geert Uytterhoeven
2021-06-28 10:15 ` Marek Behun
2021-06-28 15:33 ` Geert Uytterhoeven
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