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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-29 23:28:39 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-29 23:28:39 +0300
commitb02b1fbdd338f70e49efa9ca9899214134526701 (patch)
tree41cbafa4be3db0ee853f5a4ce3764f1eabaff6f9 /drivers/scsi/scsi_lib.c
parent1a695a905c18548062509178b98bc91e67510864 (diff)
parent787ab6e97024926f38773287d9f98a9b330bce23 (diff)
downloadlinux-b02b1fbdd338f70e49efa9ca9899214134526701.tar.xz
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley: "This is a set of four fixes noticed in the merge window. The aacraid one is an optimisation, the mp3sas one fixes a spurious printk, the sd_check_events one fixes a theoretical race and the failed zero length commands fixes a bug in our completion/retry routines that has been causing problems in the field" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: aacraid: do not activate events on non-SRC adapters mpt3sas: add missing curly braces sd: get disk reference in sd_check_events() scsi_lib: correctly retry failed zero length REQ_TYPE_FS commands
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index b2e332af0f51..c71344aebdbb 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -821,9 +821,12 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
}
/*
- * If we finished all bytes in the request we are done now.
+ * special case: failed zero length commands always need to
+ * drop down into the retry code. Otherwise, if we finished
+ * all bytes in the request we are done now.
*/
- if (!scsi_end_request(req, error, good_bytes, 0))
+ if (!(blk_rq_bytes(req) == 0 && error) &&
+ !scsi_end_request(req, error, good_bytes, 0))
return;
/*