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Yufen Yu e01f2b0821 floppy: check_events callback should not return a negative number 
[ Upstream commit 96d7cb932e ]

floppy_check_events() is supposed to return bit flags to say which
events occured. We should return zero to say that no event flags are
set.  Only BIT(0) and BIT(1) are used in the caller. And .check_events
interface also expect to return an unsigned int value.

However, after commit a0c80efe59, it may return -EINTR (-4u).
Here, both BIT(0) and BIT(1) are cleared. So this patch shouldn't
affect runtime, but it obviously is still worth fixing.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: a0c80efe59 ("floppy: fix lock_fdc() signal handling")
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-03-23 20:09:45 +01:00
..
aoe drivers/block/aoe/aoedev: NULL check is not needed for mempool_destroy 2018-08-08 09:17:20 -06:00
drbd drbd: skip spurious timeout (ping-timeo) when failing promote 2019-02-12 19:47:14 +01:00
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: remove unused pers_gnts_lock from struct xen_blkif_ring 2018-08-27 12:12:04 -04:00
zram zram: fix lockdep warning of free block handling 2019-02-12 19:47:18 +01:00
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 block: brd: associate with queue until adding disk 2018-11-27 16:12:58 +01:00
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: check_events callback should not return a negative number 2019-03-23 20:09:45 +01:00
Kconfig cdrom: Use struct scsi_sense_hdr internally 2018-08-02 15:22:39 -06:00
loop.c loop: drop caches if offset or block_size are changed 2019-01-22 21:40:38 +01:00
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: Use set_blocksize() to set device blocksize 2019-01-22 21:40:38 +01:00
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 null_blk: fix zoned support for non-rq based operation 2018-09-12 18:21:11 -06:00
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 rbd: RBD_V{1,2}_DATA_FORMAT macros 2017-02-20 12:16:15 +01:00
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 block drivers/block: Use octal not symbolic permissions 2018-05-24 13:38:59 -06:00
xen-blkfront.c xen-blkfront: fix kernel panic with negotiate_mq error path 2018-11-13 11:08:53 -08:00
xsysace.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
z2ram.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00