Staging: rtl8712: signedness bug in init

PollingCnt is 20 and that means we loop 20 times and then run the
timeout code.  After the end of the loop PollingCnt should be -1 but
because it's an unsigned char, it's actually 255 and the timeout
code never runs.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/staging/rtl8712/usb_halinit.c b/drivers/staging/rtl8712/usb_halinit.c
index f6569dce3012..0e9483bbabe1 100644
--- a/drivers/staging/rtl8712/usb_halinit.c
+++ b/drivers/staging/rtl8712/usb_halinit.c
@@ -37,7 +37,7 @@ u8 r8712_usb_hal_bus_init(struct _adapter *padapter)
 {
         u8 val8 = 0;
         u8 ret = _SUCCESS;
-        u8 PollingCnt = 20;
+        int PollingCnt = 20;
         struct registry_priv *pregistrypriv = &padapter->registrypriv;
 
         if (pregistrypriv->chip_version == RTL8712_FPGA) {