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authorBoris BREZILLON <boris.brezillon@free-electrons.com>2015-07-30 12:18:03 +0200
committerLuis Henriques <luis.henriques@canonical.com>2015-12-09 11:40:58 +0000
commit74dce55ccaec23e148a09cd34242300aaf4e666b (patch)
tree3c5ad2cf9e5c6b6c1b252ee168e5c79b6b51d40e /drivers/mtd
parentbd6fc7f0284c2b6b4aa01776cdead3473d1ee822 (diff)
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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: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'drivers/mtd')
-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 1ca9aec141ff..822d634b9ed5 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -637,8 +637,10 @@ 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);