From: Christoph Hellwig <hch@lst.de>
Date: Tue, 8 Mar 2022 05:51:51 +0000 (+0100)
Subject: sd: call sd_zbc_release_disk before releasing the scsi_device reference
X-Git-Tag: v6.6.17~7816^2~25
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c76c46fa04c42f7d3a494c526ce5f030da36b553;p=platform%2Fkernel%2Flinux-rpi.git

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
--- 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);
 }