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

[Simon Arlott]

If the cdrom fails to be registered then the device minor should be
deallocated.

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

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);
-- 
2.17.1

-- 
Simon Arlott