ceph: fix error paths for corrupt osdmap messages

Both osdmap_decode() and osdmap_apply_incremental() should never return
NULL.

Signed-off-by: Sage Weil <sage@newdream.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/ceph/osd_client.c b/fs/ceph/osd_client.c
index 4bfe880d53c8..b474b3ad61f0 100644
--- a/fs/ceph/osd_client.c
+++ b/fs/ceph/osd_client.c
@@ -910,6 +910,7 @@ void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg)
                                 err = PTR_ERR(newmap);
                                 goto bad;
                         }
+                        BUG_ON(!newmap);
                         if (newmap != osdc->osdmap) {
                                 ceph_osdmap_destroy(osdc->osdmap);
                                 osdc->osdmap = newmap;
@@ -946,6 +947,7 @@ void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg)
                                 err = PTR_ERR(newmap);
                                 goto bad;
                         }
+                        BUG_ON(!newmap);
                         oldmap = osdc->osdmap;
                         osdc->osdmap = newmap;
                         if (oldmap)