NFS: Fix a use-before-initialised warning in fs/nfs/write.c and fs/nfs/pnfs.c

If the allocation of nfs_write_header fails, the list of nfs_pages that
needs to be cleaned up is still on desc->pg_list...

Reported-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Fred Isaman <iisaman@netapp.com>

diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 4da05e4..39cbac5 100644 (file)
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1308,7 +1308,7 @@ pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
 
        whdr = nfs_writehdr_alloc();
        if (!whdr) {
-               desc->pg_completion_ops->error_cleanup(&hdr->pages);
+               desc->pg_completion_ops->error_cleanup(&desc->pg_list);
                put_lseg(desc->pg_lseg);
                desc->pg_lseg = NULL;
                return -ENOMEM;

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index fec214b..3636191 100644 (file)
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1164,7 +1164,7 @@ static int nfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
 
        whdr = nfs_writehdr_alloc();
        if (!whdr) {
-               desc->pg_completion_ops->error_cleanup(&hdr->pages);
+               desc->pg_completion_ops->error_cleanup(&desc->pg_list);
                return -ENOMEM;
        }
        hdr = &whdr->header;