lkml.org 
[lkml]   [2017]   [Jan]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[PATCH 1/8] mmc-core: Use kmalloc_array() in mmc_test_area_init()
From
Date
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 8 Jan 2017 18:44:26 +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.

* Replace the specification of a data structure by a pointer dereference
to make the corresponding size determination a bit safer according to
the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/mmc/core/mmc_test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/core/mmc_test.c b/drivers/mmc/core/mmc_test.c
index 3ab6e52d106c..e85ef503d7ce 100644
--- a/drivers/mmc/core/mmc_test.c
+++ b/drivers/mmc/core/mmc_test.c
@@ -1579,7 +1579,7 @@ static int mmc_test_area_init(struct mmc_test_card *test, int erase, int fill)
if (!t->mem)
return -ENOMEM;

- t->sg = kmalloc(sizeof(struct scatterlist) * t->max_segs, GFP_KERNEL);
+ t->sg = kmalloc_array(t->max_segs, sizeof(*t->sg), GFP_KERNEL);
if (!t->sg) {
ret = -ENOMEM;
goto out_free;
--
2.11.0
\
 
 \ /
  Last update: 2017-01-08 22:45    [W:0.124 / U:0.168 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site