diff options
| author | Roger Pau Monné <roger.pau@citrix.com> | 2014-09-15 11:55:27 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-14 10:10:25 -0800 |
| commit | 90e2b7d5186ed1158e5c56cf483754d8edd2e5ee (patch) | |
| tree | 2630a2febc4b15d3d7dcbd812f49f9f958ffca91 /drivers/block | |
| parent | c22f531fe6fca50ca49cd815374db1b0cbe95b16 (diff) | |
xen-blkback: fix leak on grant map error path
commit 61cecca865280bef4f8a9748d0a9afa5df351ac2 upstream.
Fix leaking a page when a grant mapping has failed.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reported-and-Tested-by: Tao Chen <boby.chen@huawei.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/xen-blkback/blkback.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 64c60edcdfbc..63fc7f06a014 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -763,6 +763,7 @@ again: BUG_ON(new_map_idx >= segs_to_map); if (unlikely(map[new_map_idx].status != 0)) { pr_debug(DRV_PFX "invalid buffer -- could not remap it\n"); + put_free_pages(blkif, &pages[seg_idx]->page, 1); pages[seg_idx]->handle = BLKBACK_INVALID_HANDLE; ret |= 1; goto next; |