From: SF Markus Elfring <elfring@users.sourceforge.net>
To: linux-media@vger.kernel.org,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH 13/19] [media] uvc_video: Use kmalloc_array() in uvc_video_clock_init()
Date: Sun, 25 Dec 2016 19:45:29 +0100 [thread overview]
Message-ID: <47b935d9-e063-503a-47e5-2aee2ffe149c@users.sourceforge.net> (raw)
In-Reply-To: <47aa4314-74ec-b2bf-ee3b-aad4d6e9f0a2@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 25 Dec 2016 16:45:21 +0100
A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/media/usb/uvc/uvc_video.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
index f3c1c852e401..05b396f033ca 100644
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -500,9 +500,9 @@ static int uvc_video_clock_init(struct uvc_streaming *stream)
spin_lock_init(&clock->lock);
clock->size = 32;
-
- clock->samples = kmalloc(clock->size * sizeof(*clock->samples),
- GFP_KERNEL);
+ clock->samples = kmalloc_array(clock->size,
+ sizeof(*clock->samples),
+ GFP_KERNEL);
if (clock->samples == NULL)
return -ENOMEM;
--
2.11.0
next prev parent reply other threads:[~2016-12-25 18:45 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-25 18:28 [PATCH 00/19] [media] USB Video Class driver: Fine-tuning for several function implementations SF Markus Elfring
2016-12-25 18:29 ` [PATCH 01/19] [media] uvc_driver: Use kmalloc_array() in uvc_simplify_fraction() SF Markus Elfring
2016-12-25 18:31 ` [PATCH 02/19] [media] uvc_driver: Combine substrings for 48 messages SF Markus Elfring
2016-12-25 18:32 ` [PATCH 03/19] [media] uvc_driver: Adjust three function calls together with a variable assignment SF Markus Elfring
2016-12-25 18:33 ` [PATCH 04/19] [media] uvc_driver: Adjust 28 checks for null pointers SF Markus Elfring
2016-12-25 18:35 ` [PATCH 05/19] [media] uvc_driver: Enclose 24 expressions for the sizeof operator by parentheses SF Markus Elfring
2016-12-25 18:36 ` [PATCH 06/19] [media] uvc_driver: Add some spaces for better code readability SF Markus Elfring
2016-12-25 18:37 ` [PATCH 07/19] [media] uvc_driver: Rename a jump label in uvc_probe() SF Markus Elfring
2016-12-25 18:39 ` [PATCH 08/19] [media] uvc_driver: Rename a jump label in uvc_scan_fallback() SF Markus Elfring
2016-12-25 18:40 ` [PATCH 09/19] [media] uvc_driver: Less function calls in uvc_parse_streaming() after error detection SF Markus Elfring
2016-12-25 18:41 ` [PATCH 10/19] [media] uvc_driver: Return -ENOMEM after a failed kzalloc() call in uvc_parse_streaming() SF Markus Elfring
2016-12-25 18:43 ` [PATCH 11/19] [media] uvc_driver: Delete an unnecessary variable initialisation " SF Markus Elfring
2016-12-25 18:44 ` [PATCH 12/19] [media] uvc_driver: Move six assignments " SF Markus Elfring
2016-12-25 18:45 ` SF Markus Elfring [this message]
2016-12-25 18:46 ` [PATCH 14/19] [media] uvc_video: Combine substrings for 22 messages SF Markus Elfring
2016-12-25 18:47 ` [PATCH 15/19] [media] uvc_video: Adjust one function call together with a variable assignment SF Markus Elfring
2016-12-25 18:49 ` [PATCH 16/19] [media] uvc_video: Adjust 18 checks for null pointers SF Markus Elfring
2016-12-25 18:50 ` [PATCH 17/19] [media] uvc_video: Fix a typo in a comment line SF Markus Elfring
2016-12-25 18:51 ` [PATCH 18/19] [media] uvc_video: Enclose an expression for the sizeof operator by parentheses SF Markus Elfring
2016-12-25 18:54 ` [PATCH 19/19] [media] uvc_video: Add some spaces for better code readability SF Markus Elfring
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