diff options
| author | Johan Hovold <johan@kernel.org> | 2021-05-19 11:20:05 +0200 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2021-05-21 15:46:20 +0200 |
| commit | 661867161f63bc5cc22b0d1e8ea59a682779a0ef (patch) | |
| tree | 10a6939a243347cd54d0e03bc9e2a8bc5827d85d | |
| parent | 683c5cfa5d1c050c698654e9bb13b12c8e60e174 (diff) | |
USB: serial: mos7840: drop buffer-callback return-value comments
The driver write_room and chars_in_buffer callbacks used to incorrectly
return a negative errno in case they were called with a NULL port
driver-data pointer or if some other always-true sanity checks failed.
The bogus sanity checks were later removed by commit ce039bd4b21f ("USB:
serial: mos7840: drop paranoid port checks") and 7b2faede671a ("USB:
serial: mos7840: drop port driver data accessors") but the
function-header comments were never updated to match.
Drop the outdated return-value comments.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
| -rw-r--r-- | drivers/usb/serial/mos7840.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index b22ccbd98998..d7fe33ca73e4 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -730,9 +730,6 @@ err: * this function is called by the tty driver when it wants to know how many * bytes of data we currently have outstanding in the port (data that has * been written, but hasn't made it out the port yet) - * If successful, we return the number of bytes left to be written in the - * system, - * Otherwise we return zero. *****************************************************************************/ static unsigned int mos7840_chars_in_buffer(struct tty_struct *tty) @@ -814,8 +811,6 @@ static void mos7840_break(struct tty_struct *tty, int break_state) * mos7840_write_room * this function is called by the tty driver when it wants to know how many * bytes of data we can accept for a specific port. - * If successful, we return the amount of room that we have for this port - * Otherwise we return a negative error number. *****************************************************************************/ static unsigned int mos7840_write_room(struct tty_struct *tty) |