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| author | Stuart Henderson <stuarth@opensource.cirrus.com> | 2019-10-02 11:42:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-10 13:27:15 +0300 |
| commit | 513474f59001d8d84b33b159d2b17ecc398ad356 (patch) | |
| tree | d6fd7cd4707b70b671a4f5ea99e3ba11ffee3af3 | |
| parent | bab5c14b5c8909d80a7e322613405451b25b11aa (diff) | |
| download | linux-513474f59001d8d84b33b159d2b17ecc398ad356.tar.xz | |
ASoC: wm_adsp: Don't generate kcontrols without READ flags
[ Upstream commit 3ae7359c0e39f42a96284d6798fc669acff38140 ]
User space always expects to be able to read ALSA controls, so ensure
no kcontrols are generated without an appropriate READ flag. In the case
of a read of such a control zeros will be returned.
Signed-off-by: Stuart Henderson <stuarth@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20191002084240.21589-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | sound/soc/codecs/wm_adsp.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index ee85056a8577..b114fc7b2a95 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -1147,8 +1147,7 @@ static unsigned int wmfw_convert_flags(unsigned int in, unsigned int len) } if (in) { - if (in & WMFW_CTL_FLAG_READABLE) - out |= rd; + out |= rd; if (in & WMFW_CTL_FLAG_WRITEABLE) out |= wr; if (in & WMFW_CTL_FLAG_VOLATILE) |