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usb: dwc3: ep0: prevent starting transfers twice on ep0

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In case we try to start an invalid test mode, we
will call dwc3_ep0_stall_and_restart() but we will
also call dwc3_ep0_out_start() which will start
a second transfer on ep0.

Let's prevent any problems by returning early in
the error case.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi
2012-06-25 19:30:49 +03:00
parent 9be2395186
commit 5c81ababec
1 changed files with 1 additions and 0 deletions
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1
drivers/usb/dwc3/ep0.c
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@@ -744,6 +744,7 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc,
dev_dbg(dwc->dev, "Invalid Test #%d\n", dev_dbg(dwc->dev, "Invalid Test #%d\n",
dwc->test_mode_nr); dwc->test_mode_nr);
dwc3_ep0_stall_and_restart(dwc); dwc3_ep0_stall_and_restart(dwc);
return;
} }
} }