[PATCH] usb: dwc2: Fix ep disable spinlock flow.

[Minas Harutyunyan]

Changed spinlock flow to fix smatch warnings.

Fixes: dccf1bad4be7 ("usb: dwc2: Disable all EP's on disconnect")
Signed-off-by: Minas Harutyunyan <hmi...@synopsys.com>
---
 drivers/usb/dwc2/gadget.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 2d6d2c8244de..8eb25e3597b0 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -4088,9 +4088,7 @@ static int dwc2_hsotg_ep_disable(struct usb_ep *ep)
 
        epctrl_reg = dir_in ? DIEPCTL(index) : DOEPCTL(index);
 
-       locked = spin_is_locked(&hsotg->lock);
-       if (!locked)
-               spin_lock_irqsave(&hsotg->lock, flags);
+       locked = spin_trylock_irqsave(&hsotg->lock, flags);
 
        ctrl = dwc2_readl(hsotg, epctrl_reg);
 
@@ -4114,7 +4112,7 @@ static int dwc2_hsotg_ep_disable(struct usb_ep *ep)
        hs_ep->fifo_index = 0;
        hs_ep->fifo_size = 0;
 
-       if (!locked)
+       if (locked)
                spin_unlock_irqrestore(&hsotg->lock, flags);
 
        return 0;
-- 
2.11.0