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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-12 15:54:30 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-12 15:54:30 -0800
commit5e2078b2899da31ff4c9854e932b186685d5bea0 (patch)
tree8184fc55e70840c5f7345044e4d2dc28cb12120f /fs/dax.c
parenta4d8c7c9f7754405c52c59e1b1e984df5749d7bb (diff)
parente3a7a3bf362e2a8acc301e5eaec2631e740a8a95 (diff)
downloadlinux-5e2078b2899da31ff4c9854e932b186685d5bea0.tar.bz2
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull misc block fixes from Jens Axboe: "Stuff that got collected after the merge window opened. This contains: - NVMe: - Fix for non-striped transfer size setting for NVMe from Sathyavathi. - (Some) support for the weird Apple nvme controller in the macbooks. From Stephan Günther. - The error value leak for dax from Al. - A few minor blk-mq tweaks from me. - Add the new linux-block@vger.kernel.org mailing list to the MAINTAINERS file. - Discard fix for brd, from Jan. - A kerneldoc warning for block core from Randy. - An older fix from Vivek, converting a WARN_ON() to a rate limited printk when a device is hot removed with dirty inodes" * 'for-linus' of git://git.kernel.dk/linux-block: block: don't hardcode blk_qc_t -> tag mask dax_io(): don't let non-error value escape via retval instead of EFAULT block: fix blk-core.c kernel-doc warning fs/block_dev.c: Remove WARN_ON() when inode writeback fails NVMe: add support for Apple NVMe controller NVMe: use split lo_hi_{read,write}q blk-mq: mark __blk_mq_complete_request() static MAINTAINERS: add reference to new linux-block list NVMe: Increase the max transfer size when mdts is 0 brd: Refuse improperly aligned discard requests
Diffstat (limited to 'fs/dax.c')
-rw-r--r--fs/dax.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/dax.c b/fs/dax.c
index 131fd35ae39d..8e17b371aeb8 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -174,8 +174,10 @@ static ssize_t dax_io(struct inode *inode, struct iov_iter *iter,
else
len = iov_iter_zero(max - pos, iter);
- if (!len)
+ if (!len) {
+ retval = -EFAULT;
break;
+ }
pos += len;
addr += len;