From 830ffb565760234eb984e4343ad82575e96728de Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 20 Sep 2012 21:25:19 -0400 Subject: [PATCH] NFSv4.1: Fix a reference leak in pnfs_update_layout If we exit after the call to pnfs_find_alloc_layout(), we have to ensure that we put the struct pnfs_layout_hdr. Signed-off-by: Trond Myklebust --- fs/nfs/pnfs.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 2c59da5511db..d7a8f03e7295 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1067,8 +1067,10 @@ pnfs_update_layout(struct inode *ino, spin_lock(&ino->i_lock); lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags); - if (lo == NULL) - goto out_unlock; + if (lo == NULL) { + spin_unlock(&ino->i_lock); + goto out; + } /* Do we even need to bother with this? */ if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags)) { @@ -1122,6 +1124,7 @@ pnfs_update_layout(struct inode *ino, spin_unlock(&clp->cl_lock); } atomic_dec(&lo->plh_outstanding); +out_put_layout_hdr: pnfs_put_layout_hdr(lo); out: dprintk("%s: inode %s/%llu pNFS layout segment %s for " @@ -1135,7 +1138,7 @@ pnfs_update_layout(struct inode *ino, return lseg; out_unlock: spin_unlock(&ino->i_lock); - goto out; + goto out_put_layout_hdr; } EXPORT_SYMBOL_GPL(pnfs_update_layout); -- GitLab