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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: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-Francois Moine 2009-07-28 04:38:25 -03:00 committed by Mauro Carvalho Chehab
parent c61fd24f2d
commit 1c8336d338
1 changed files with 1 additions and 1 deletions
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2
drivers/media/video/gspca/gspca.c
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@ -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;
}