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Subject[PATCH 3.2 043/106] block: fix an error code in add_partition()
3.2.93-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>

commit 7bd897cfce1eb373892d35d7f73201b0f9b221c4 upstream.

We don't set an error code on this path. It means that we return NULL
instead of an error pointer and the caller does a NULL dereference.

Fixes: 6d1d8050b4bc ("block, partition: add partition_meta_info to hd_struct")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/partitions/check.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -457,8 +457,10 @@ struct hd_struct *add_partition(struct g

if (info) {
struct partition_meta_info *pinfo = alloc_part_info(disk);
- if (!pinfo)
+ if (!pinfo) {
+ err = -ENOMEM;
goto out_free_stats;
+ }
memcpy(pinfo, info, sizeof(*info));
p->info = pinfo;
}
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