[S390] zcrypt: Free ap_device if dev_set_name fails.

If dev_set_name fails during scanning the AP bus, the reserved memory
has to be freed.

Signed-off-by: Felix Beck <felix.beck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 85785807acb..090b32a339c 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1111,8 +1111,11 @@ static void ap_scan_bus(struct work_struct *unused)
 
                 ap_dev->device.bus = &ap_bus_type;
                 ap_dev->device.parent = ap_root_device;
-                dev_set_name(&ap_dev->device, "card%02x",
-                             AP_QID_DEVICE(ap_dev->qid));
+                if (dev_set_name(&ap_dev->device, "card%02x",
+                                 AP_QID_DEVICE(ap_dev->qid))) {
+                        kfree(ap_dev);
+                        continue;
+                }
                 ap_dev->device.release = ap_device_release;
                 rc = device_register(&ap_dev->device);
                 if (rc) {