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authorJohan Hovold <johan@kernel.org>2018-05-21 14:08:44 +0300
committerJohan Hovold <johan@kernel.org>2018-05-22 11:08:05 +0300
commit7b0c6b38c4f9f9736ccd41363b3cfd7143e1f823 (patch)
tree156c532f1176791fe7e09e51f61a2c473c327e91 /drivers/tty/tty_ioctl.c
parentdf1cd63d6d112e4a1402166dacc411ccca9b09ac (diff)
downloadlinux-7b0c6b38c4f9f9736ccd41363b3cfd7143e1f823.tar.xz
tty: add missing const to termios hw-change helper
Add missing const qualifiers to the parameters of the termios hw-change helper, which is used by a few USB serial drivers. This specifically allows the pl2303 driver to use const arguments in one of its helper as well. Cc: Jiri Slaby <jslaby@suse.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/tty/tty_ioctl.c')
-rw-r--r--drivers/tty/tty_ioctl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index d9b561d89432..d99fec44036c 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -290,7 +290,7 @@ EXPORT_SYMBOL(tty_termios_copy_hw);
* between the two termios structures, or a speed change is needed.
*/
-int tty_termios_hw_change(struct ktermios *a, struct ktermios *b)
+int tty_termios_hw_change(const struct ktermios *a, const struct ktermios *b)
{
if (a->c_ispeed != b->c_ispeed || a->c_ospeed != b->c_ospeed)
return 1;