media: em28xx: calculate left volume level correctly

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The calculation of the left volume looks suspect, the value of
0x1f - ((val << 8) & 0x1f) is always 0x1f. The debug prior to the
assignment of value[1] prints the left volume setting using the
calculation 0x1f - (val >> 8) & 0x1f which looks correct to me.
Fix the left volume by using the correct expression as used in
the debug.

Detected by CoverityScan, CID#146140 ("Wrong operator used")

Fixes: 850d24a5a8 ("[media] em28xx-alsa: add mixer support for AC97 volume controls")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

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Colin Ian King 2017-08-22 10:21:20 -04:00 • committed by Mauro Carvalho Chehab

parent bd9f8f750e

commit 801e3659bf

1 changed files with 1 additions and 1 deletions

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drivers/media/usb/em28xx/em28xx-audio.c

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