diff mbox series

[2/2] scsi: sr: Fix sr_probe() missing deallocate of device minor

Message ID da1f6f28-cdd4-72da-703b-749aba3f27ef@0882a8b5-c6c3-11e9-b005-00805fc181fe (mailing list archive)
State Superseded
Headers show
Series [1/2] scsi: sr: Fix sr_probe() missing mutex_destroy | expand

Commit Message

Simon Arlott May 30, 2020, 9:33 a.m. UTC
If the cdrom fails to be registered then the device minor should be
deallocated.

Signed-off-by: Simon Arlott <simon@octiron.net>
---
 drivers/scsi/sr.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Comments

Bart Van Assche May 30, 2020, 4:24 p.m. UTC | #1
On 2020-05-30 02:33, Simon Arlott wrote:
> If the cdrom fails to be registered then the device minor should be
> deallocated.

Also for this patch, please add Fixes: and Cc: stable tags.

Thanks,

Bart.
diff mbox series

Patch

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 8d062d4f3ce0..1e13c6a0f0ca 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -797,7 +797,7 @@  static int sr_probe(struct device *dev)
 	cd->cdi.disk = disk;
 
 	if (register_cdrom(&cd->cdi))
-		goto fail_put;
+		goto fail_minor;
 
 	/*
 	 * Initialize block layer runtime PM stuffs before the
@@ -815,6 +815,10 @@  static int sr_probe(struct device *dev)
 
 	return 0;
 
+fail_minor:
+	spin_lock(&sr_index_lock);
+	clear_bit(minor, sr_index_bits);
+	spin_unlock(&sr_index_lock);
 fail_put:
 	put_disk(disk);
 	mutex_destroy(&cd->lock);