[PATCH] Return a negative error code when seq_path_root() fails.

[Tetsuo Handa]

seq_path_root() is returning a return value of successful __d_path()
instead of returning a negative value when mangle_path() failed.

This is not a bug so far because nobody is using return value of
seq_path_root().

Signed-off-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
---
 fs/seq_file.c |    1 +
 1 file changed, 1 insertion(+)

--- linux-2.6.30-rc7.orig/fs/seq_file.c
+++ linux-2.6.30-rc7/fs/seq_file.c
@@ -470,6 +470,7 @@ int seq_path_root(struct seq_file *m, st
 				m->count = s - m->buf;
 				return 0;
 			}
+			err = -ENAMETOOLONG;
 		}
 	}
 	m->count = m->size;
--
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