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authorBoris BREZILLON <boris.brezillon@free-electrons.com>2015-07-30 13:18:03 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-02-20 01:28:26 +0300
commitb5a93606fa8df9e993809bc956467ea70a1493dd (patch)
treeacc7983519a0de259003383829b5a27b3556f6ba
parente1890d8f9373c4da8a30f7d44f72d283ebb499e0 (diff)
downloadlinux-b5a93606fa8df9e993809bc956467ea70a1493dd.tar.xz
mtd: mtdpart: fix add_mtd_partitions error path
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>
-rw-r--r--drivers/mtd/mtdpart.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index cafdb8855a79..919a936abc42 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -664,8 +664,10 @@ int add_mtd_partitions(struct mtd_info *master,
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);