LU-4423 lov: check return value of lov_sub_get()

[fs/lustre-release.git] / lustre / lov / lov_io.c

diff --git a/lustre/lov/lov_io.c b/lustre/lov/lov_io.c
index a0ee8e9..56e1ba1 100644 (file)
--- a/lustre/lov/lov_io.c
+++ b/lustre/lov/lov_io.c
@@ -587,6 +587,8 @@ static int lov_io_read_ahead(const struct lu_env *env,
                RETURN(-EIO);
 
        sub = lov_sub_get(env, lio, stripe);
                RETURN(-EIO);
 
        sub = lov_sub_get(env, lio, stripe);

+       if (IS_ERR(sub))
+               return PTR_ERR(sub);

 
        lov_stripe_offset(loo->lo_lsm, cl_offset(obj, start), stripe, &suboff);
        rc = cl_io_read_ahead(sub->sub_env, sub->sub_io,
 
        lov_stripe_offset(loo->lo_lsm, cl_offset(obj, start), stripe, &suboff);
        rc = cl_io_read_ahead(sub->sub_env, sub->sub_io,