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usb: musb: print an error message when hwep alloc failed

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Print an error message with qh maxpacket size and hb_mult when hwep
allocation failed, so we have a better idea why it is failed.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bin Liu 2017-08-24 11:38:33 -05:00 committed by Greg Kroah-Hartman
parent 0ccbadafb4
commit a2f656060b
1 changed files with 4 additions and 0 deletions
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4
drivers/usb/musb/musb_host.c
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@ -2152,6 +2152,10 @@ static int musb_schedule(
(USB_SPEED_HIGH == qh->dev->speed) ? 8 : 4;
goto success;
} else if (best_end < 0) {
dev_err(musb->controller,
"%s hwep alloc failed for %dx%d\n",
musb_ep_xfertype_string(qh->type),
qh->hb_mult, qh->maxpacket);
return -ENOSPC;
}