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Commit 1c8336d3 authored by Jean-Francois Moine's avatar Jean-Francois Moine Committed by Mauro Carvalho Chehab
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V4L/DVB (12358): gspca - main: Memorize the current alt before setting it 



This prevents a loop if a permanent error occurs in usb_set_interface().

Signed-off-by: default avatarJean-Francois Moine <moinejf@free.fr>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent c61fd24f

drivers/media/video/gspca/gspca.c

+1 −1
Original line number Diff line number Diff line
@@ -486,6 +486,7 @@ static struct usb_host_endpoint *get_ep(struct gspca_dev *gspca_dev) 
	}

	PDEBUG(D_STREAM, "use alt %d ep 0x%02x",

			i, ep->desc.bEndpointAddress);

	gspca_dev->alt = i;		/* memorize the current alt setting */

	if (gspca_dev->nbalt > 1) {

		ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, i);

		if (ret < 0) {
@@ -493,7 +494,6 @@ static struct usb_host_endpoint *get_ep(struct gspca_dev *gspca_dev) 
			return NULL;

		}

	}

	gspca_dev->alt = i;		/* memorize the current alt setting */

	return ep;

}