Subject: [PATCH v2] fixup null q->dev checking in both block and scsi layer

From: Stanley Chu <[email-masked]>
Date: Thu, 12 Sep 2019 16:35:26 +0800

Some devices may skip blk_pm_runtime_init() and have null pointer in its request_queue->dev. For example, SCSI devices of UFS Well-Known LUNs.

Currently the null pointer is checked by the user of blk_set_runtime_active(), i.e., scsi_dev_type_resume(). It is better to check it by blk_set_runtime_active() itself instead of by its users.

v1 => v2:
- Change if style in blk_set_runtime_active() (Jens)

Stanley Chu (2):
  block: bypass blk_set_runtime_active for uninitialized q->dev
  scsi: core: remove dummy q->dev check

 block/blk-pm.c         | 12 +++++++-----
 drivers/scsi/scsi_pm.c |  3 +--
 2 files changed, 8 insertions(+), 7 deletions(-)

-- 
2.18.0

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