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xen-blkfront: Use kcalloc instead of kzalloc to allocate array

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The advantage of kcalloc is, that will prevent integer overflows which could
result from the multiplication of number of elements and size and it is also
a bit nicer to read.

The semantic patch that makes this change is available
in https://lkml.org/lkml/2011/11/25/107

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
[v1: Seperated the drivers/block/cciss_scsi.c out of this patch]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Thomas Meyer 2011-11-29 22:08:00 +01:00 committed by Konrad Rzeszutek Wilk
parent ae18be11b5
commit f094148a17
1 changed files with 1 additions and 1 deletions
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2
drivers/block/xen-blkfront.c
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@ -157,7 +157,7 @@ static int xlbd_reserve_minors(unsigned int minor, unsigned int nr)
if (end > nr_minors) {
unsigned long *bitmap, *old;
bitmap = kzalloc(BITS_TO_LONGS(end) * sizeof(*bitmap),
bitmap = kcalloc(BITS_TO_LONGS(end), sizeof(*bitmap),
GFP_KERNEL);
if (bitmap == NULL)
return -ENOMEM;