Commit 78bf3c9a authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Enforce the mask in snd_soc_update_bits() 



Avoids issues if someone does a read followed by restore and doesn't mask
out only the bits being updated.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@ti.com>
parent 51b3b5ca

sound/soc/soc-core.c

+1 −1
Original line number Diff line number Diff line
@@ -2323,7 +2323,7 @@ int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, 
		return ret;



	old = ret;

	new = (old & ~mask) | value;

	new = (old & ~mask) | (value & mask);

	change = old != new;

	if (change) {

		ret = snd_soc_write(codec, reg, new);