From 188f3457c21ac7869005021b56b4578293c644bb Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 16 Sep 2007 10:47:15 -0300 Subject: V4L/DVB (6465): Use correct error codes when chip is not recognized If the chip isn't recognized, then the correct errors should be returned. The v4l2_i2c_attach() utility function will return 0 for all errors except -ENOMEM to provide proper compatibility support for the old I2C probing function. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/wm8739.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/media/video/wm8739.c') diff --git a/drivers/media/video/wm8739.c b/drivers/media/video/wm8739.c index 459228a5cf5..3d9e709833c 100644 --- a/drivers/media/video/wm8739.c +++ b/drivers/media/video/wm8739.c @@ -264,6 +264,10 @@ static int wm8739_probe(struct i2c_client *client) { struct wm8739_state *state; + /* Check if the adapter supports the needed features */ + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -EIO; + v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); state = kmalloc(sizeof(struct wm8739_state), GFP_KERNEL); -- cgit v1.2.3