Merge tag 'v5.1-rc6' into for-5.2/block

Pull in v5.1-rc6 to resolve two conflicts. One is in BFQ, in just a
comment, and is trivial. The other one is a conflict due to a later fix
in the bio multi-page work, and needs a bit more care.

* tag 'v5.1-rc6': (770 commits)
  Linux 5.1-rc6
  block: make sure that bvec length can't be overflow
  block: kill all_q_node in request_queue
  x86/cpu/intel: Lower the "ENERGY_PERF_BIAS: Set to normal" message's log priority
  coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
  mm/kmemleak.c: fix unused-function warning
  init: initialize jump labels before command line option parsing
  kernel/watchdog_hld.c: hard lockup message should end with a newline
  kcov: improve CONFIG_ARCH_HAS_KCOV help text
  mm: fix inactive list balancing between NUMA nodes and cgroups
  mm/hotplug: treat CMA pages as unmovable
  proc: fixup proc-pid-vm test
  proc: fix map_files test on F29
  mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n
  mm/memory_hotplug: do not unlock after failing to take the device_hotplug_lock
  mm: swapoff: shmem_unuse() stop eviction without igrab()
  mm: swapoff: take notice of completion sooner
  mm: swapoff: remove too limiting SWAP_UNUSE_MAX_TRIES
  mm: swapoff: shmem_find_swap_entries() filter out other types
  slab: store tagged freelist for off-slab slabmgmt
  ...

Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index 5436d856e656..001dbdcbf355 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -314,6 +314,7 @@ static void pcd_init_units(void)
 		disk->queue = blk_mq_init_sq_queue(&cd->tag_set, &pcd_mq_ops,
 						   1, BLK_MQ_F_SHOULD_MERGE);
 		if (IS_ERR(disk->queue)) {
+			put_disk(disk);
 			disk->queue = NULL;
 			continue;
 		}
@@ -751,6 +752,8 @@ static int pcd_detect(void)
 
 	printk("%s: No CD-ROM drive found\n", name);
 	for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
+		if (!cd->disk)
+			continue;
 		blk_cleanup_queue(cd->disk->queue);
 		cd->disk->queue = NULL;
 		blk_mq_free_tag_set(&cd->tag_set);
@@ -1011,8 +1014,14 @@ static int __init pcd_init(void)
 	pcd_probe_capabilities();
 
 	if (register_blkdev(major, name)) {
-		for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++)
+		for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
+			if (!cd->disk)
+				continue;
+
+			blk_cleanup_queue(cd->disk->queue);
+			blk_mq_free_tag_set(&cd->tag_set);
 			put_disk(cd->disk);
+		}
 		return -EBUSY;
 	}
 
@@ -1033,6 +1042,9 @@ static void __exit pcd_exit(void)
 	int unit;
 
 	for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
+		if (!cd->disk)
+			continue;
+
 		if (cd->present) {
 			del_gendisk(cd->disk);
 			pi_release(cd->pi);