From: huanghua <huanghua>
Date: Wed, 22 Nov 2006 07:36:34 +0000 (+0000)
Subject: fix oops while accessing NULL pointer
X-Git-Tag: v1_8_0_110~486^2~100
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=395611e57de9e097a1b617c34e973c390443ef1f;p=fs%2Flustre-release.git

fix oops while accessing NULL pointer
---

diff --git a/lustre/lmv/lmv_internal.h b/lustre/lmv/lmv_internal.h
index 27fb215..643330d 100644
--- a/lustre/lmv/lmv_internal.h
+++ b/lustre/lmv/lmv_internal.h
@@ -204,7 +204,11 @@ lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid)
 static inline struct obd_export *
 lmv_find_export(struct lmv_obd *lmv, const struct lu_fid *fid)
 {
-        return lmv_find_target(lmv, fid)->ltd_exp;
+        struct lmv_tgt_desc *tgt = lmv_find_target(lmv, fid);
+        if (IS_ERR(tgt))
+                return (struct obd_export*)tgt;
+        else
+                return tgt->ltd_exp;
 }
 
 /* lproc_lmv.c */