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Message-ID: <d0db8c45-5999-6000-212a-3e8957766afb@users.sourceforge.net>
Date: Sat, 24 Sep 2016 08:24:09 +0200
From: SF Markus Elfring <elfring@...rs.sourceforge.net>
To: linux-iio@...r.kernel.org, Hartmut Knaack <knaack.h@....de>,
Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
Peter Meerwald-Stadler <pmeerw@...erw.net>
Cc: LKML <linux-kernel@...r.kernel.org>,
kernel-janitors@...r.kernel.org,
Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 1/7] iio: Use kmalloc_array() in iio_scan_mask_set()
From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 23 Sep 2016 22:30:32 +0200
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@...rs.sourceforge.net>
---
drivers/iio/industrialio-buffer.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 49bf9c5..7a4d9499 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -307,10 +307,9 @@ static int iio_scan_mask_set(struct iio_dev *indio_dev,
const unsigned long *mask;
unsigned long *trialmask;
- trialmask = kmalloc(sizeof(*trialmask)*
- BITS_TO_LONGS(indio_dev->masklength),
- GFP_KERNEL);
-
+ trialmask = kmalloc_array(BITS_TO_LONGS(indio_dev->masklength),
+ sizeof(*trialmask),
+ GFP_KERNEL);
if (trialmask == NULL)
return -ENOMEM;
if (!indio_dev->masklength) {
--
2.10.0
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