ASoC: rsnd: fix usrcnt decrementing bug

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Field usrcnt is unsigned so it cannot be lesser than zero.
The patch fixes the check, moves it to the beginning of the function
and changes return value to -EIO in case of usercnt error.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

...

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Andrzej Hajda 2015-12-24 08:02:39 +01:00 • committed by Mark Brown

parent b4c83b1715

commit e5d9cfc6f5

1 changed files with 14 additions and 13 deletions

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27

sound/soc/sh/rcar/ssi.c

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