Patch "mtd: mtdpart: fix add_mtd_partitions error path" has been added to the 4.3-stable tree

[<gregkh@linuxfoundation.org>]

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

    mtd: mtdpart: fix add_mtd_partitions error path

to the 4.3-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:
     mtd-mtdpart-fix-add_mtd_partitions-error-path.patch
and it can be found in the queue-4.3 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 e5bae86797141e4a95e42d825f737cb36d7b8c37 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Thu, 30 Jul 2015 12:18:03 +0200
Subject: mtd: mtdpart: fix add_mtd_partitions error path

From: Boris BREZILLON <boris.brezillon@free-electrons.com>

commit e5bae86797141e4a95e42d825f737cb36d7b8c37 upstream.

If we fail to allocate a partition structure in the middle of the partition
creation process, the already allocated partitions are never removed, which
means they are still present in the partition list and their resources are
never freed.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/mtd/mtdpart.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -664,8 +664,10 @@ int add_mtd_partitions(struct mtd_info *
 
 	for (i = 0; i < nbparts; i++) {
 		slave = allocate_partition(master, parts + i, i, cur_offset);
-		if (IS_ERR(slave))
+		if (IS_ERR(slave)) {
+			del_mtd_partitions(master);
 			return PTR_ERR(slave);
+		}
 
 		mutex_lock(&mtd_partitions_mutex);
 		list_add(&slave->list, &mtd_partitions);


Patches currently in stable-queue which might be from boris.brezillon@free-electrons.com are

queue-4.3/mtd-mtdpart-fix-add_mtd_partitions-error-path.patch
queue-4.3/mtd-nand-fix-shutdown-reboot-for-multi-chip-systems.patch