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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-28 12:52:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-28 12:52:24 -0800
commitee89f81252179dcbf6cd65bd48299f5e52292d88 (patch)
tree805846cd12821f84cfe619d44c9e3e36e0b0f9e6 /drivers/block
parent21f3b24da9328415792efc780f50b9f434c12465 (diff)
parentde33127d8d3f1d570aad8c2223cd81b206636bc1 (diff)
Merge branch 'for-3.9/core' of git://git.kernel.dk/linux-block
Pull block IO core bits from Jens Axboe: "Below are the core block IO bits for 3.9. It was delayed a few days since my workstation kept crashing every 2-8h after pulling it into current -git, but turns out it is a bug in the new pstate code (divide by zero, will report separately). In any case, it contains: - The big cfq/blkcg update from Tejun and and Vivek. - Additional block and writeback tracepoints from Tejun. - Improvement of the should sort (based on queues) logic in the plug flushing. - _io() variants of the wait_for_completion() interface, using io_schedule() instead of schedule() to contribute to io wait properly. - Various little fixes. You'll get two trivial merge conflicts, which should be easy enough to fix up" Fix up the trivial conflicts due to hlist traversal cleanups (commit b67bfe0d42ca: "hlist: drop the node parameter from iterators"). * 'for-3.9/core' of git://git.kernel.dk/linux-block: (39 commits) block: remove redundant check to bd_openers() block: use i_size_write() in bd_set_size() cfq: fix lock imbalance with failed allocations drivers/block/swim3.c: fix null pointer dereference block: don't select PERCPU_RWSEM block: account iowait time when waiting for completion of IO request sched: add wait_for_completion_io[_timeout] writeback: add more tracepoints block: add block_{touch|dirty}_buffer tracepoint buffer: make touch_buffer() an exported function block: add @req to bio_{front|back}_merge tracepoints block: add missing block_bio_complete() tracepoint block: Remove should_sort judgement when flush blk_plug block,elevator: use new hashtable implementation cfq-iosched: add hierarchical cfq_group statistics cfq-iosched: collect stats from dead cfqgs cfq-iosched: separate out cfqg_stats_reset() from cfq_pd_reset_stats() blkcg: make blkcg_print_blkgs() grab q locks instead of blkcg lock block: RCU free request_queue blkcg: implement blkg_[rw]stat_recursive_sum() and blkg_[rw]stat_merge() ...
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/swim3.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index 57763c54363a..758f2ac878cf 100644
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -1090,10 +1090,13 @@ static const struct block_device_operations floppy_fops = {
static void swim3_mb_event(struct macio_dev* mdev, int mb_state)
{
struct floppy_state *fs = macio_get_drvdata(mdev);
- struct swim3 __iomem *sw = fs->swim3;
+ struct swim3 __iomem *sw;
if (!fs)
return;
+
+ sw = fs->swim3;
+
if (mb_state != MB_FD)
return;