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

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;