If soc_dapm_read() fails, reg_val will be uninitialized, and bogus
values will be written later:
sound/soc/soc-dapm.c: In function 'snd_soc_dapm_get_enum_double':
sound/soc/soc-dapm.c:2862:15: warning: 'reg_val' may be used uninitialized in this function [-Wmaybe-uninitialized]
unsigned int reg_val, val;
^
Return early on error to fix this.
Introduced by commit ce0fc93ae56e2ba50ff8c220d69e4e860e889320 ("ASoC:
Add DAPM support at the component level").
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Is this correct? Please review.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>