rtlwifi: Fix memory leak when firmware request fails

commit f2764f61 upstream.

This patch will fix memory leak when firmware request fails
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Cc: Sven Joachim <svenjoac@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c

@@ -175,6 +175,8 @@ int rtl88e_init_sw_vars(struct ieee80211_hw *hw)
 				      rtl_fw_cb);
 	if (err) {
 		pr_info("Failed to request firmware!\n");
+		vfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
 		return 1;
 	}
 

drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c

@@ -176,6 +176,8 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw)
 				      rtl_fw_cb);
 	if (err) {
 		pr_err("Failed to request firmware!\n");
+		vfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
 		return 1;
 	}
 

drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c

@@ -85,6 +85,10 @@ static int rtl92cu_init_sw_vars(struct ieee80211_hw *hw)
 	err = request_firmware_nowait(THIS_MODULE, 1,
 				      fw_name, rtlpriv->io.dev,
 				      GFP_KERNEL, hw, rtl_fw_cb);
+	if (err) {
+		vfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
+	}
 	return err;
 }
 

drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c

@@ -183,6 +183,8 @@ static int rtl92d_init_sw_vars(struct ieee80211_hw *hw)
 				      rtl_fw_cb);
 	if (err) {
 		pr_err("Failed to request firmware!\n");
+		vfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
 		return 1;
 	}
 

drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c

@@ -177,6 +177,8 @@ int rtl92ee_init_sw_vars(struct ieee80211_hw *hw)
 				      rtl_fw_cb);
 	if (err) {
 		pr_err("Failed to request firmware!\n");
+		vfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
 		return 1;
 	}
 

drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c

@@ -216,6 +216,8 @@ static int rtl92s_init_sw_vars(struct ieee80211_hw *hw)
 				      rtl92se_fw_cb);
 	if (err) {
 		pr_err("Failed to request firmware!\n");
+		vfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
 		return 1;
 	}
 

drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c

@@ -184,6 +184,8 @@ int rtl8723e_init_sw_vars(struct ieee80211_hw *hw)
 				      rtl_fw_cb);
 	if (err) {
 		pr_err("Failed to request firmware!\n");
+		vfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
 		return 1;
 	}
 	return 0;

drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c

@@ -195,6 +195,8 @@ int rtl8723be_init_sw_vars(struct ieee80211_hw *hw)
 					      rtl_fw_cb);
 		if (err) {
 			pr_err("Failed to request firmware!\n");
+			vfree(rtlpriv->rtlhal.pfirmware);
+			rtlpriv->rtlhal.pfirmware = NULL;
 			return 1;
 		}
 	}

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c

@@ -196,6 +196,8 @@ int rtl8821ae_init_sw_vars(struct ieee80211_hw *hw)
 	rtlpriv->rtlhal.wowlan_firmware = vzalloc(0x8000);
 	if (!rtlpriv->rtlhal.wowlan_firmware) {
 		pr_err("Can't alloc buffer for wowlan fw.\n");
+		vfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
 		return 1;
 	}
 
@@ -222,6 +224,8 @@ int rtl8821ae_init_sw_vars(struct ieee80211_hw *hw)
 					      rtl_fw_cb);
 		if (err) {
 			pr_err("Failed to request normal firmware!\n");
+			vfree(rtlpriv->rtlhal.wowlan_firmware);
+			vfree(rtlpriv->rtlhal.pfirmware);
 			return 1;
 		}
 	}
@@ -233,6 +237,8 @@ int rtl8821ae_init_sw_vars(struct ieee80211_hw *hw)
 				      rtl_wowlan_fw_cb);
 	if (err) {
 		pr_err("Failed to request wowlan firmware!\n");
+		vfree(rtlpriv->rtlhal.wowlan_firmware);
+		vfree(rtlpriv->rtlhal.pfirmware);
 		return 1;
 	}
 	return 0;