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rt2x00: 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>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Thomas Meyer 2011-11-29 22:08:00 +01:00 committed by John W. Linville
parent 5f779bbd47
commit 839fafbe0d
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/rt2x00/rt2x00dev.c
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@ -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;