xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tty: make receive_buf() return the amout of bytes received

Browse Source 
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>
This commit is contained in:
Felipe Balbi
2011-03-21 12:25:08 +02:00
committed by Greg Kroah-Hartman
parent e9a470f445
commit b1c43f82c5
20 changed files with 125 additions and 113 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/caif/caif_serial.c
View File

@@ -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)