diff options
| author | Ming Lei <ming.lei@redhat.com> | 2017-10-14 17:22:31 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-11-01 08:20:02 -0600 |
| commit | aeec77629a4ac6f8c248f3a82e80d4170a881f22 (patch) | |
| tree | b7a500ba2ada9f2e70d4adc8a608095aa6f63045 /drivers/scsi/scsi_lib.c | |
| parent | b347689ffbca745ac457ee27400ce1affd571c6f (diff) | |
scsi: allow passing in null rq to scsi_prep_state_check()
In the following patch, we will implement scsi_get_budget()
which need to call scsi_prep_state_check() when rq isn't
dequeued yet.
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 9cf6a80fe297..d159bb085714 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1301,7 +1301,7 @@ scsi_prep_state_check(struct scsi_device *sdev, struct request *req) /* * If the devices is blocked we defer normal commands. */ - if (!(req->rq_flags & RQF_PREEMPT)) + if (req && !(req->rq_flags & RQF_PREEMPT)) ret = BLKPREP_DEFER; break; default: @@ -1310,7 +1310,7 @@ scsi_prep_state_check(struct scsi_device *sdev, struct request *req) * special commands. In particular any user initiated * command is not allowed. */ - if (!(req->rq_flags & RQF_PREEMPT)) + if (req && !(req->rq_flags & RQF_PREEMPT)) ret = BLKPREP_KILL; break; } |