[PATCH] cw1200: Fix a signedness bug in cw1200_load_firmware()

[Dan Carpenter]

The "priv->hw_type" is an enum and in this context GCC will treat it
as an unsigned int so the error handling will never trigger.

Fixes: a910e4a94f69 ("cw1200: add driver for the ST-E CW1100 & CW1200 WLAN 
chipsets")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
 drivers/net/wireless/st/cw1200/fwio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/st/cw1200/fwio.c 
b/drivers/net/wireless/st/cw1200/fwio.c
index 6574e78e05ea..da767c33dfbb 100644
--- a/drivers/net/wireless/st/cw1200/fwio.c
+++ b/drivers/net/wireless/st/cw1200/fwio.c
@@ -321,7 +321,7 @@ int cw1200_load_firmware(struct cw1200_common *priv)
        }
 
        priv->hw_type = cw1200_get_hw_type(val32, &major_revision);
-       if (priv->hw_type < 0) {
+       if ((int)priv->hw_type < 0) {
                pr_err("Can't deduce hardware type.\n");
                ret = -ENOTSUPP;
                goto out;
-- 
2.20.1