Although timeout has never been experienced, still to make it
meaningful, its better to return error if it ever occurs.
Signed-off-by: Pratyush Anand <pratyush.anand@xxxxxx>
---
drivers/usb/dwc3/gadget.c | 11 +++++++----
1 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 5c0a68a..f6ba644 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1443,7 +1443,7 @@ static int dwc3_gadget_set_selfpowered(struct usb_gadget *g,
return 0;
}
-static void dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on)
+static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on)
{
u32 reg;
u32 timeout = 500;
@@ -1475,7 +1475,7 @@ static void dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on)
}
timeout--;
if (!timeout)
- break;
+ return -ETIMEDOUT;
udelay(1);
} while (1);
@@ -1483,20 +1483,23 @@ static void dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on)
dwc->gadget_driver
? dwc->gadget_driver->function : "no-function",
is_on ? "connect" : "disconnect");
+
+ return 0;
}
static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on)
{
struct dwc3 *dwc = gadget_to_dwc(g);
unsigned long flags;
+ int ret;
is_on = !!is_on;
spin_lock_irqsave(&dwc->lock, flags);
- dwc3_gadget_run_stop(dwc, is_on);
+ ret = dwc3_gadget_run_stop(dwc, is_on);
spin_unlock_irqrestore(&dwc->lock, flags);
- return 0;
+ return ret;
}
static int dwc3_gadget_start(struct usb_gadget *g,
--
1.7.5.4
--
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