Staging: rtl8192su: fix test for negative error in rtl8192_rx_isr()

[Roel Kluin]

The error tested for is negative

Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/staging/rtl8192su/r8192U_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -1501,7 +1501,7 @@ static void rtl8192_rx_isr(struct urb *u
         urb->context = skb;
         skb_queue_tail(&priv->rx_queue, skb);
         err = usb_submit_urb(urb, GFP_ATOMIC);
-	if(err && err != EPERM)
+	if(err && err != -EPERM)
 		printk("can not submit rxurb, err is %x,URB status is %x\n",err,urb->status);
 }
 

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