From: Nathaniel Clark <nathaniel.l.clark@intel.com>
Date: Tue, 16 Aug 2016 20:18:43 +0000 (-0400)
Subject: staging: lustre: lmv: Ensure lmv_intent_lookup cleans up reqp
X-Git-Tag: v4.9-rc1~119^2~1107
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9b58714f9ab4138dabcf7176fdc465bd00afeae9;p=karo-tx-linux.git

staging: lustre: lmv: Ensure lmv_intent_lookup cleans up reqp

Ensure there aren't invalid pointers hanging around after
ptlrpc_req_finished is called.

Signed-off-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4826
Reviewed-on: http://review.whamcloud.com/9841
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/lustre/lustre/lmv/lmv_intent.c b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
index a38d343b9359..d7e165f041a5 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_intent.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
@@ -464,6 +464,9 @@ static int lmv_intent_lookup(struct obd_export *exp,
 			return PTR_ERR(tgt);
 
 		ptlrpc_req_finished(*reqp);
+		it->it_request = NULL;
+		*reqp = NULL;
+
 		CDEBUG(D_INODE, "For migrating dir, try target dir "DFID"\n",
 		       PFID(&lsm->lsm_md_oinfo[1].lmo_fid));