diff options
| author |   Felipe Balbi <balbi@ti.com> | 2011-03-21 12:25:08 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-22 17:31:53 -0700 |
| commit | b1c43f82c5aa265442f82dba31ce985ebb7aa71c (patch) | |
| tree | 8b344d8d5355b30e8deff901180edc708a653227 /drivers/net/caif/caif_serial.c | |
| parent | Serial: Remove unused code. (diff) | |
| download | linux-dev-b1c43f82c5aa265442f82dba31ce985ebb7aa71c.tar.xz linux-dev-b1c43f82c5aa265442f82dba31ce985ebb7aa71c.zip | |
tty: make receive_buf() return the amout of bytes received
it makes it simpler to keep track of the amount of
bytes received and simplifies how flush_to_ldisc counts
the remaining bytes. It also fixes a bug of lost bytes
on n_tty when flushing too many bytes via the USB
serial gadget driver.
Tested-by: Stefan Bigler <stefan.bigler@keymile.com>
Tested-by: Toby Gray <toby.gray@realvnc.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/net/caif/caif_serial.c')
| -rw-r--r-- | drivers/net/caif/caif_serial.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c index 3df0c0f8b8bf..73c7e03617ec 100644 --- a/drivers/net/caif/caif_serial.c +++ b/drivers/net/caif/caif_serial.c @@ -167,8 +167,8 @@ static inline void debugfs_tx(struct ser_device *ser, const u8 *data, int size) #endif -static void ldisc_receive(struct tty_struct *tty, const u8 *data, - char *flags, int count) +static unsigned int ldisc_receive(struct tty_struct *tty, + const u8 *data, char *flags, int count) { struct sk_buff *skb = NULL; struct ser_device *ser; @@ -215,6 +215,8 @@ static void ldisc_receive(struct tty_struct *tty, const u8 *data, } else ++ser->dev->stats.rx_dropped; update_tty_status(ser); + + return count; } static int handle_tx(struct ser_device *ser) |