From: Thomas Meyer Date: Tue, 29 Nov 2011 21:08:00 +0000 (+0100) Subject: rt2x00: Use kcalloc instead of kzalloc to allocate array X-Git-Tag: v3.3-rc1~182^2~261^2~37 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=839fafbe0dc35fabeb9bd3be9727fd74d12c0b9d;p=pandora-kernel.git rt2x00: 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 Acked-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index edd317fa7c0a..c3e1aa7c1a80 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -831,11 +831,11 @@ static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev, if (spec->supported_rates & SUPPORT_RATE_OFDM) num_rates += 8; - channels = kzalloc(sizeof(*channels) * spec->num_channels, GFP_KERNEL); + channels = kcalloc(spec->num_channels, sizeof(*channels), GFP_KERNEL); if (!channels) return -ENOMEM; - rates = kzalloc(sizeof(*rates) * num_rates, GFP_KERNEL); + rates = kcalloc(num_rates, sizeof(*rates), GFP_KERNEL); if (!rates) goto exit_free_channels;