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ALSA: pcm: oss: Use struct_size() helper

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Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.

So, replace the following form:

sizeof(struct rate_priv) + src_format->channels * sizeof(struct rate_channel)

with:

struct_size(data, channels, src_format->channels)

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Gustavo A. R. Silva 2019-05-23 15:29:17 -05:00 committed by Takashi Iwai
parent 947b437e12
commit 92bfa664ae
1 changed files with 2 additions and 2 deletions
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4
sound/core/oss/rate.c
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@ -323,8 +323,8 @@ int snd_pcm_plugin_build_rate(struct snd_pcm_substream *plug,
err = snd_pcm_plugin_build(plug, "rate conversion",
src_format, dst_format,
sizeof(struct rate_priv) +
src_format->channels * sizeof(struct rate_channel),
struct_size(data, channels,
src_format->channels),
&plugin);
if (err < 0)
return err;