diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2021-03-02 07:22:13 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-10 09:34:09 +0100 |
| commit | 10eb63e5a9b243181f0e87033875f94f3698afda (patch) | |
| tree | 1cbf86edec2d1de1fd54fcfcc72a5e5cc56b0425 /drivers/tty/vcc.c | |
| parent | tty: cleanup tty_chars_in_buffer (diff) | |
| download | linux-10eb63e5a9b243181f0e87033875f94f3698afda.tar.xz linux-10eb63e5a9b243181f0e87033875f94f3698afda.zip | |
tty: make everyone's chars_in_buffer return >= 0
The tty line disciplines don't expect tty_operations::chars_in_buffer to
return negative values. Fix the two drivers which violate this.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210302062214.29627-43-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/vcc.c')
| -rw-r--r-- | drivers/tty/vcc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/vcc.c b/drivers/tty/vcc.c index 04a792749816..3106df98558a 100644 --- a/drivers/tty/vcc.c +++ b/drivers/tty/vcc.c @@ -896,7 +896,7 @@ static int vcc_chars_in_buffer(struct tty_struct *tty) port = vcc_get_ne(tty->index); if (unlikely(!port)) { pr_err("VCC: chars_in_buffer: Failed to find VCC port\n"); - return -ENODEV; + return 0; } num = port->chars_in_buffer; |