If there is no s_export_op present in a target superblock we might have nil dereference. Fix it with eplicit test if s_export_op is provided. Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx> CC: Pavel Emelyanov <xemul@xxxxxxxxxxxxx> CC: Al Viro <viro@xxxxxxxxxxxxxxxxxx> CC: Alexey Dobriyan <adobriyan@xxxxxxxxx> CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> CC: James Bottomley <jbottomley@xxxxxxxxxxxxx> CC: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx> CC: Alexey Dobriyan <adobriyan@xxxxxxxxx> CC: Matthew Helsley <matt.helsley@xxxxxxxxx> CC: "J. Bruce Fields" <bfields@xxxxxxxxxxxx> CC: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx> --- fs/exportfs/expfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6.git/fs/exportfs/expfs.c =================================================================== --- linux-2.6.git.orig/fs/exportfs/expfs.c +++ linux-2.6.git/fs/exportfs/expfs.c @@ -357,7 +357,7 @@ int exportfs_encode_fh(struct dentry *de */ parent = p->d_inode; } - if (nop->encode_fh) + if (nop && nop->encode_fh) error = nop->encode_fh(inode, fid->raw, max_len, parent); else error = export_encode_fh(inode, fid, max_len, parent); -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
