Since bcache_device_free() checks the d->disk pointer I think that
means that that pointer can be NULL. Hence test that pointer before
using it. This was detected by smatch.
Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx>
---
drivers/md/bcache/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index d19a44cd1fd7..39bec137f636 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -742,7 +742,7 @@ static void bcache_device_free(struct bcache_device *d)
{
lockdep_assert_held(&bch_register_lock);
- pr_info("%s stopped", d->disk->disk_name);
+ pr_info("%s stopped", d->disk ? d->disk->disk_name : "(?)");
if (d->c)
bcache_device_detach(d);
--
2.16.2
