From 66b46e68a52114e7065f0bfd0016276ae5925e70 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 23 Feb 2009 12:12:58 -0300 Subject: [PATCH] V4L/DVB (10668): ov772x: bit mask operation fix on ov772x_mask_set. Signed-off-by: Kuninori Morimoto Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/ov772x.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/ov772x.c b/drivers/media/video/ov772x.c index 702e61a9c02..6b18da7c3c0 100644 --- a/drivers/media/video/ov772x.c +++ b/drivers/media/video/ov772x.c @@ -565,8 +565,11 @@ static int ov772x_mask_set(struct i2c_client *client, 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); } -- 2.41.0