diff --git a/Makefile b/Makefile
index 0f9cb36..080962b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 4
-PATCHLEVEL = 6
+PATCHLEVEL = 7
 SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = rc1
 NAME = Charred Weasel
 
 # *DOCUMENTATION*
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index 0f48048..2fc0e26 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -75,7 +75,7 @@ void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
 		rtl_addr_delay(addr);
 	} else {
 		rtl_set_rfreg(hw, rfpath, addr, mask, data);
-		usleep_range(1, 2);
+		udelay(1);
 	}
 }
 EXPORT_SYMBOL(rtl_rfreg_delay);