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[media] gspca - main: Handle the xHCI error on usb_set_interface()

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This patch is adapted from a patch from Sarah Sharp (2010/05/03).
The xHCD handler checks the USB bandwidth on usb_set_interface()
instead of on usb_submit_urb().
Now, the same treatment is applied in case of error of both functions.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-François Moine 2011-08-10 07:40:47 -03:00 committed by Mauro Carvalho Chehab
parent 27b12023d7
commit 4274d84ce8
1 changed files with 3 additions and 0 deletions
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3
drivers/media/video/gspca/gspca.c
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@ -887,6 +887,8 @@ static int gspca_init_transfer(struct gspca_dev *gspca_dev)
gspca_dev->iface,
alt);
if (ret < 0) {
if (ret == -ENOSPC)
goto retry; /*fixme: ugly*/
pr_err("set alt %d err %d\n", alt, ret);
goto out;
}
@ -942,6 +944,7 @@ static int gspca_init_transfer(struct gspca_dev *gspca_dev)
/* the bandwidth is not wide enough
* negotiate or try a lower alternate setting */
retry:
PDEBUG(D_ERR|D_STREAM,
"alt %d - bandwidth not wide enough - trying again",
alt);