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UPSTREAM: usb: dwc3: gadget: loop while (timeout)

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instead of having infinite loop and always checking
timeout value as a break condition, we can just
decrement timeout inside while's condition.

Change-Id: I665d39e7205463f5f4439f3a6d4fdfc6e3ed67b2
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
(cherry picked from commit f6bb225bb3)
This commit is contained in:
Felipe Balbi
2016-05-23 13:53:34 +03:00
committed by Huang, Tao
parent 282c3a79e1
commit ace9119cde
1 changed files with 6 additions and 12 deletions
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18
drivers/usb/dwc3/gadget.c
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@@ -327,19 +327,13 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned cmd,
break;
}
} while (--timeout);
/*
* We can't sleep here, because it is also called from
* interrupt context.
*/
timeout--;
if (!timeout) {
dwc3_trace(trace_dwc3_gadget,
"Command Timed Out");
ret = -ETIMEDOUT;
break;
}
} while (1);
if (timeout == 0) {
dwc3_trace(trace_dwc3_gadget,
"Command Timed Out");
ret = -ETIMEDOUT;
}
if (unlikely(susphy)) {
reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));