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V4L/DVB (10670): tw9910: bit mask operation fix on tw9910_mask_set.

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Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Kuninori Morimoto 2009-02-23 12:12:58 -03:00 committed by Mauro Carvalho Chehab
parent 051489119a
commit 1af1b7a2de
1 changed files with 3 additions and 1 deletions
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4
drivers/media/video/tw9910.c
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@ -460,9 +460,11 @@ static int tw9910_mask_set(struct i2c_client *client, u8 command,
u8 mask, u8 set)
{
s32 val = i2c_smbus_read_byte_data(client, command);
if (val < 0)
return val;
val &= ~mask;
val |= set;
val |= set & mask;
return i2c_smbus_write_byte_data(client, command, val);
}