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Commit 588dbbb5 authored by Erik Andren's avatar Erik Andren Committed by Mauro Carvalho Chehab
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V4L/DVB (9277): gspca: propagate an error in m5602_start_transfer() 



Signed-off-by: default avatarErik Andren <erik.andren@gmail.com>
Signed-off-by: default avatarJean-Francois Moine <moinejf@free.fr>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent dcadd082

drivers/media/video/gspca/m5602/m5602_core.c

+6 −4
Original line number Diff line number Diff line
@@ -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,