diff options
| author | Yu Kuai <yukuai3@huawei.com> | 2023-07-05 10:40:01 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-07-19 23:12:13 -0400 |
| commit | 80b6051085c5fedcb1dfd7b2562a63a83655c4d8 (patch) | |
| tree | db735bdc058d9c0148667b134d31371f3396c1a2 | |
| parent | f4d1a8e011909fee24643f84bd1196e1366c26f2 (diff) | |
scsi: sg: Fix checking return value of blk_get_queue()
Commit fcaa174a9c99 ("scsi/sg: don't grab scsi host module reference") make
a mess how blk_get_queue() is called, blk_get_queue() returns true on
success while the caller expects it returns 0 on success.
Fix this problem and also add a corresponding error message on failure.
Fixes: fcaa174a9c99 ("scsi/sg: don't grab scsi host module reference")
Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Closes: https://lore.kernel.org/all/87lefv622n.fsf@linux.ibm.com/
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20230705024001.177585-1-yukuai1@huaweicloud.com
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Tested-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/sg.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 89fa046c7158..0d8afffd1683 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1497,9 +1497,10 @@ sg_add_device(struct device *cl_dev) int error; unsigned long iflags; - error = blk_get_queue(scsidp->request_queue); - if (error) - return error; + if (!blk_get_queue(scsidp->request_queue)) { + pr_warn("%s: get scsi_device queue failed\n", __func__); + return -ENODEV; + } error = -ENOMEM; cdev = cdev_alloc(); |