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tty: tty_buffer: warn if losing flags in __tty_insert_flip_string_flags()
[platform/kernel/linux-starfive.git]
/
drivers
/
tty
/
tty_buffer.c
diff --git
a/drivers/tty/tty_buffer.c
b/drivers/tty/tty_buffer.c
index
94a88dc
..
c101b4a
100644
(file)
--- a/
drivers/tty/tty_buffer.c
+++ b/
drivers/tty/tty_buffer.c
@@
-325,6
+325,9
@@
int __tty_insert_flip_string_flags(struct tty_port *port, const u8 *chars,
flags += space;
} else if (tb->flags) {
memset(flag_buf_ptr(tb, tb->used), flags[0], space);
+ } else {
+ /* tb->flags should be available once requested */
+ WARN_ON_ONCE(need_flags);
}
tb->used += space;