iwlwifi: use meaningful vars in _iwl_poll_bit()

Rename vars in _iwl_poll_bit() to better reflect the truth.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h
index 998ac1971696..0a92e7431ada 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.h
+++ b/drivers/net/wireless/iwlwifi/iwl-io.h
@@ -87,17 +87,18 @@ static inline u32 __iwl_read32(char *f, u32 l, struct iwl_priv *priv, u32 ofs)
 #define iwl_read32(p, o) _iwl_read32(p, o)
 #endif
 
+#define IWL_POLL_INTERVAL 10    /* microseconds */
 static inline int _iwl_poll_bit(struct iwl_priv *priv, u32 addr,
                                 u32 bits, u32 mask, int timeout)
 {
-        int i = 0;
+        int t = 0;
 
         do {
                 if ((_iwl_read32(priv, addr) & mask) == (bits & mask))
-                        return i;
-                udelay(10);
-                i += 10;
-        } while (i < timeout);
+                        return t;
+                udelay(IWL_POLL_INTERVAL);
+                t += IWL_POLL_INTERVAL;
+        } while (t < timeout);
 
         return -ETIMEDOUT;
 }