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V4L/DVB (10668): ov772x: bit mask operation fix on ov772x_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 cdce7c0be2
commit 66b46e68a5
1 changed files with 4 additions and 1 deletions
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5
drivers/media/video/ov772x.c
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@@ -565,8 +565,11 @@ static int ov772x_mask_set(struct i2c_client *client,
u8 set) u8 set)
{ {
s32 val = i2c_smbus_read_byte_data(client, command); s32 val = i2c_smbus_read_byte_data(client, command);
if (val < 0)
return val;
val &= ~mask; val &= ~mask;
val |= set; val |= set & mask;
return i2c_smbus_write_byte_data(client, command, val); return i2c_smbus_write_byte_data(client, command, val);
} }