sd: call sd_zbc_release_disk before releasing the scsi_device reference

sd_zbc_release_disk accesses disk->device, so ensure that actually still has
a valid reference.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220308055200.735835-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 7479e7c..7bfebf5 100644 (file)
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3672,9 +3672,9 @@ static void scsi_disk_release(struct device *dev)
 
        disk->private_data = NULL;
        put_disk(disk);
-       put_device(&sdkp->device->sdev_gendev);
 
        sd_zbc_release_disk(sdkp);
+       put_device(&sdkp->device->sdev_gendev);
 
        kfree(sdkp);
 }