um: finally kill ->init_str leaks

now we can do that...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 002d4a968ae..9ffade87a8c 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -509,8 +509,10 @@ int setup_one_line(struct line *lines, int n, char *init,
                         *error_out = "Failed to allocate memory";
                         return -ENOMEM;
                 }
-                if (line->valid)
+                if (line->valid) {
                         tty_unregister_device(driver, n);
+                        kfree(line->init_str);
+                }
                 line->init_str = new;
                 line->valid = 1;
                 err = parse_chan_pair(new, line, n, opts, error_out);