Patch "kaweth: fix oops upon failed memory allocation" has been added to the 3.18-stable tree

Patch "kaweth: fix oops upon failed memory allocation" has been added to the 3.18-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    kaweth: fix oops upon failed memory allocation

to the 3.18-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:
     kaweth-fix-oops-upon-failed-memory-allocation.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 575ced7f8090c1a4e91e2daf8da9352a6a1fc7a7 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.com>
Date: Wed, 17 Aug 2016 15:51:56 +0200
Subject: kaweth: fix oops upon failed memory allocation

From: Oliver Neukum <oneukum@suse.com>

commit 575ced7f8090c1a4e91e2daf8da9352a6a1fc7a7 upstream.

Just return an error upon failure.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/usb/kaweth.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -1009,6 +1009,7 @@ static int kaweth_probe(
 	struct net_device *netdev;
 	const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 	int result = 0;
+	int rv = -EIO;
 
 	dev_dbg(dev,
 		"Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x\n",
@@ -1049,6 +1050,10 @@ static int kaweth_probe(
 		/* Download the firmware */
 		dev_info(dev, "Downloading firmware...\n");
 		kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL);
+		if (!kaweth->firmware_buf) {
+			rv = -ENOMEM;
+			goto err_free_netdev;
+		}
 		if ((result = kaweth_download_firmware(kaweth,
 						      "kaweth/new_code.bin",
 						      100,
@@ -1209,7 +1214,7 @@ err_only_tx:
 err_free_netdev:
 	free_netdev(netdev);
 
-	return -EIO;
+	return rv;
 }
 
 /****************************************************************


Patches currently in stable-queue which might be from oneukum@suse.com are

queue-3.18/kaweth-fix-oops-upon-failed-memory-allocation.patch
queue-3.18/kaweth-fix-firmware-download.patch