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| author |   Jiri Slaby <jslaby@suse.cz> | 2021-03-02 07:22:14 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-10 09:34:09 +0100 |
| commit | 6bfbfcfc58005ee12d37b56a5e722618ef6bee8f (patch) | |
| tree | a9cbd9e585a4d35f4df4950968a1dd7082efc7c8 /drivers/tty/vcc.c | |
| parent | tty: make everyone's chars_in_buffer return >= 0 (diff) | |
| download | linux-dev-6bfbfcfc58005ee12d37b56a5e722618ef6bee8f.tar.xz linux-dev-6bfbfcfc58005ee12d37b56a5e722618ef6bee8f.zip | |
tty: make everyone's write_room return >= 0
The tty line disciplines don't expect tty_operations::write_room to
return negative values. Fix the five drivers which violate this.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210302062214.29627-44-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 3106df98558a..0a3a71e14df4 100644 --- a/drivers/tty/vcc.c +++ b/drivers/tty/vcc.c @@ -878,7 +878,7 @@ static int vcc_write_room(struct tty_struct *tty) port = vcc_get_ne(tty->index); if (unlikely(!port)) { pr_err("VCC: write_room: Failed to find VCC port\n"); - return -ENODEV; + return 0; } num = VCC_BUFF_LEN - port->chars_in_buffer; |