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V4L/DVB (9277): gspca: propagate an error in m5602_start_transfer()

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Signed-off-by: Erik Andren <erik.andren@gmail.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Erik Andren 2008-10-16 16:36:35 -03:00 committed by Mauro Carvalho Chehab
parent dcadd0826f
commit 588dbbb520
1 changed files with 6 additions and 4 deletions
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6
drivers/media/video/gspca/m5602/m5602_core.c
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@ -146,16 +146,18 @@ static int m5602_start_transfer(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
__u8 *buf = sd->gspca_dev.usb_buf;
int err;
/* Send start command to the camera */
const u8 buffer[4] = {0x13, 0xf9, 0x0f, 0x01};
memcpy(buf, buffer, sizeof(buffer));
usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0),
err = usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
0x04, 0x40, 0x19, 0x0000, buf,
4, M5602_URB_MSG_TIMEOUT);
PDEBUG(DBG_V4L2, "Transfer started");
return 0;
return (err < 0) ? err : 0;
}
static void m5602_urb_complete(struct gspca_dev *gspca_dev,