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>

diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 002d4a9..9ffade8 100644 (file)
--- 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);