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Wenwen Wang eb535aaf3c xen/blkback: fix memory leaks 
[ Upstream commit ae78ca3cf3 ]

In read_per_ring_refs(), after 'req' and related memory regions are
allocated, xen_blkif_map() is invoked to map the shared frame, irq, and
etc. However, if this mapping process fails, no cleanup is performed,
leading to memory leaks. To fix this issue, invoke the cleanup before
returning the error.

Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-09-06 10:21:57 +02:00
..
aoe drivers/block/aoe/aoedev: NULL check is not needed for mempool_destroy 2018-08-08 09:17:20 -06:00
drbd drbd: dynamically allocate shash descriptor 2019-08-16 10:12:48 +02:00
mtip32xx Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
paride block: paride: pd: mark expected switch fall-throughs 2018-08-09 10:17:38 -06:00
rsxx Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
xen-blkback xen/blkback: fix memory leaks 2019-09-06 10:21:57 +02:00
zram zram: pass down the bvec we need to read into in the work struct 2019-05-02 09:58:53 +02:00
amiflop.c genhd: Rename get_disk() to get_disk_and_module() 2018-02-26 09:48:42 -07:00
ataflop.c ataflop: fix error handling during setup 2018-11-13 11:08:20 -08:00
brd.c brd: re-enable __GFP_HIGHMEM in brd_insert_page() 2019-05-25 18:23:24 +02:00
cryptoloop.c block: cryptoloop - Fix build warning 2017-09-26 07:41:22 -06:00
DAC960.c block/DAC960.c: make some arrays static const, shrinks object size 2018-08-21 11:00:17 -06:00
DAC960.h DAC960: don't use block layer bounce buffers 2018-05-11 15:07:54 -06:00
floppy.c floppy: fix out-of-bounds read in copy_buffer 2019-07-26 09:14:18 +02:00
Kconfig cdrom: Use struct scsi_sense_hdr internally 2018-08-02 15:22:39 -06:00
loop.c loop: set PF_MEMALLOC_NOIO for the worker thread 2019-08-16 10:12:39 +02:00
loop.h block/loop: Use global lock for ioctl() operation. 2019-01-22 21:40:36 +01:00
Makefile block: Rename the null_blk_mod kernel module back into null_blk 2018-07-24 09:54:36 -06:00
nbd.c nbd: replace kill_bdev() with __invalidate_device() again 2019-08-06 19:06:55 +02:00
null_blk.h null_blk: fix zoned support for non-rq based operation 2018-09-12 18:21:11 -06:00
null_blk_main.c block: null_blk: fix race condition for null_del_dev 2019-07-26 09:14:07 +02:00
null_blk_zoned.c null_blk: fix zoned support for non-rq based operation 2018-09-12 18:21:11 -06:00
pktcdvd.c pktcdvd: fix setting of 'ret' error return for a few cases 2018-08-16 14:09:28 -06:00
ps3disk.c ps3disk: handle highmem pages 2018-05-11 15:08:03 -06:00
ps3vram.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
rbd.c rbd: don't return 0 on unmap if RBD_DEV_FLAG_REMOVING is set 2019-01-16 22:04:36 +01:00
rbd_types.h
skd_main.c block: skd: Use %pad printk format for dma_addr_t values 2018-07-12 15:01:28 -06:00
skd_s1120.h skd: Use __packed only when needed 2017-08-18 08:45:29 -06:00
sunvdc.c sunvdc: Do not spin in an infinite loop when vio_ldc_send() returns EAGAIN 2019-02-12 19:47:03 +01:00
swim.c swim: fix cleanup on setup error 2018-11-13 11:08:20 -08:00
swim3.c block/swim3: Fix -EBUSY error when re-opening device after unmount 2019-02-12 19:47:18 +01:00
swim_asm.S
sx8.c block: sanitize blk_get_request calling conventions 2018-05-14 08:55:12 -06:00
umem.c block: Fix a race between the cgroup code and request queue initialization 2018-02-28 12:23:35 -07:00
umem.h
virtio_blk.c virtio-blk: limit number of hw queues by nr_cpu_ids 2019-05-10 17:54:09 +02:00
xen-blkfront.c xen-blkfront: switch kcalloc to kvcalloc for large array allocation 2019-06-11 12:20:53 +02:00
xsysace.c xsysace: Fix error handling in ace_setup 2019-05-08 07:21:51 +02:00
z2ram.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00