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Patch "rtlwifi: Fix memory leak when firmware request fails" has been added to the 4.13-stable tree

PATCH [email protected] 1 participant 1 message Sep 8, 2017

Subsystems (2)
Stable branch Realtek wireless driver (rtlwifi family)
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This is a note to let you know that I've just added the patch titled

rtlwifi: Fix memory leak when firmware request fails

to the 4.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
rtlwifi-fix-memory-leak-when-firmware-request-fails.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From f2764f61fa10593204b0c5e4e9a68dba02112e50 Mon Sep 17 00:00:00 2001

From: Souptick Joarder <[email protected]>
Date: Wed, 5 Jul 2017 19:55:06 +0530
Subject: rtlwifi: Fix memory leak when firmware request fails

From: Souptick Joarder <[email protected]>

commit f2764f61fa10593204b0c5e4e9a68dba02112e50 upstream.

This patch will fix memory leak when firmware request fails

Signed-off-by Souptick Joarder <[email protected]>
Acked-by Larry Finger <[email protected]>
Signed-off-by Kalle Valo <[email protected]>
Cc Sven Joachim <[email protected]>
Signed-off-by Greg Kroah-Hartman <[email protected]>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c |    2 ++
 drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c |    2 ++
 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c |    4 ++++
 drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c |    2 ++
 drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c |    2 ++
 drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c |    2 ++
 drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c |    2 ++
 drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c |    2 ++
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c |    6 ++++++
 9 files changed, 24 insertions(+)
drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c +2 -0
@@ -175,6 +175,8 @@ int rtl88e_init_sw_vars(struct ieee80211
 				      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 +2 -0
@@ -176,6 +176,8 @@ int rtl92c_init_sw_vars(struct ieee80211
 				      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 +4 -0
@@ -85,6 +85,10 @@ static int rtl92cu_init_sw_vars(struct i
 	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 +2 -0
@@ -183,6 +183,8 @@ static int rtl92d_init_sw_vars(struct ie
 				      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 +2 -0
@@ -177,6 +177,8 @@ int rtl92ee_init_sw_vars(struct ieee8021
 				      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 +2 -0
@@ -216,6 +216,8 @@ static int rtl92s_init_sw_vars(struct ie
 				      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 +2 -0
@@ -184,6 +184,8 @@ int rtl8723e_init_sw_vars(struct ieee802
 				      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 +2 -0
@@ -195,6 +195,8 @@ int rtl8723be_init_sw_vars(struct ieee80
 					      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 +6 -0
@@ -196,6 +196,8 @@ int rtl8821ae_init_sw_vars(struct ieee80
 	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 ieee80
 					      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 ieee80
 				      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;

Patches currently in stable-queue which might be from [email protected] are

queue-4.13/rtlwifi-fix-memory-leak-when-firmware-request-fails.patch