staging/lustre/ldlm: fix NULL pointer dereference

Pointer '*exp' returned from call to function 'class_conn2export' at line 523 may be NULL and may be dereferenced at line 543. Signed-off-by: Dmitry Eremin <[email protected]> Reviewed-on: http://review.whamcloud.com/9323 ntel-bug-id: https://jira.hpdd.intel.com/browse/LU-4629 Reviewed-by: John L. Hammond <[email protected]> Reviewed-by: James Simmons <[email protected]> Signed-off-by: Oleg Drokin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
kawasaki · Apr 27, 2014 · f85065e · f85065e
1 parent a700f97
commit f85065e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
@@ -514,7 +514,7 @@ int client_connect_import(const struct lu_env *env,
 		LASSERT (imp->imp_state == LUSTRE_IMP_DISCON);
 		GOTO(out_ldlm, rc);
 	}
-	LASSERT((*exp)->exp_connection);
+	LASSERT(*exp != NULL && (*exp)->exp_connection);
 
 	if (data) {
 		LASSERTF((ocd->ocd_connect_flags & data->ocd_connect_flags) ==