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authorJiri Slaby <jslaby@suse.cz>2021-05-05 12:19:17 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-05-13 19:29:11 +0300
commit9a33fbf9d23034d7e89849c587b0aed0e4cf794d (patch)
tree01de10803e6c4224214136acba1c91a2004022c6 /drivers/tty/tty_buffer.c
parent03b3b1a2405ccd71570cd5ec1fe4abd7bb4891cb (diff)
downloadlinux-9a33fbf9d23034d7e89849c587b0aed0e4cf794d.tar.xz
tty: make tty_buffer_space_avail return uint
tty_buffer_space_avail returns values >= 0, so make it clear by the return type. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Joel Stanley <joel@jms.id.au> Link: https://lore.kernel.org/r/20210505091928.22010-25-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_buffer.c')
-rw-r--r--drivers/tty/tty_buffer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 55b1f1711341..585a19f65284 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -88,7 +88,7 @@ EXPORT_SYMBOL_GPL(tty_buffer_unlock_exclusive);
* pre-allocate if memory guarantee is required).
*/
-int tty_buffer_space_avail(struct tty_port *port)
+unsigned int tty_buffer_space_avail(struct tty_port *port)
{
int space = port->buf.mem_limit - atomic_read(&port->buf.mem_used);
return max(space, 0);