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Commit 0158dab8 authored by Fedor Pchelkin's avatar Fedor Pchelkin Committed by Greg Kroah-Hartman
Browse files

NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info 



commit 96562c45af5c31b89a197af28f79bfa838fb8391 upstream.

It is an almost improbable error case but when page allocating loop in
nfs4_get_device_info() fails then we should only free the already
allocated pages, as __free_page() can't deal with NULL arguments.

Found by Linux Verification Center (linuxtesting.org).

Cc: stable@vger.kernel.org
Signed-off-by: default avatarFedor Pchelkin <pchelkin@ispras.ru>
Reviewed-by: default avatarBenjamin Coddington <bcodding@redhat.com>
Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 64c5e916

fs/nfs/pnfs_dev.c

+1 −1
Original line number Diff line number Diff line
@@ -152,7 +152,7 @@ nfs4_get_device_info(struct nfs_server *server, 
		set_bit(NFS_DEVICEID_NOCACHE, &d->flags);



out_free_pages:

	for (i = 0; i < max_pages; i++)

	while (--i >= 0)

		__free_page(pages[i]);

	kfree(pages);

out_free_pdev: