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| author | Jiri Slaby <jslaby@suse.cz> | 2013-01-03 15:53:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-15 22:30:15 -0800 |
| commit | 2e124b4a390ca85325fae75764bef92f0547fa25 (patch) | |
| tree | 5519fbcdbe954e79b271ea6d31ac5a4dc754c4f5 /drivers/char/pcmcia | |
| parent | d6c53c0e9bd0a83f9f9ddbc9fd80141a54d83896 (diff) | |
| download | lwn-2e124b4a390ca85325fae75764bef92f0547fa25.tar.gz lwn-2e124b4a390ca85325fae75764bef92f0547fa25.zip | |
TTY: switch tty_flip_buffer_push
Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.
Now, the one where most of tty_port_tty_get gets removed:
tty_flip_buffer_push.
IOW we also closed all the races in drivers not using tty_port_tty_get
at all yet.
Also we move tty_flip_buffer_push declaration from include/linux/tty.h
to include/linux/tty_flip.h to all others while we are changing it
anyway.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/pcmcia')
| -rw-r--r-- | drivers/char/pcmcia/synclink_cs.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index 92dc7327c7aa..f334aec65fc7 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -886,7 +886,7 @@ static void rx_ready_hdlc(MGSLPC_INFO *info, int eom) issue_command(info, CHA, CMD_RXFIFO); } -static void rx_ready_async(MGSLPC_INFO *info, int tcd, struct tty_struct *tty) +static void rx_ready_async(MGSLPC_INFO *info, int tcd) { struct tty_port *port = &info->port; unsigned char data, status, flag; @@ -894,14 +894,6 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd, struct tty_struct *tty) int work = 0; struct mgsl_icount *icount = &info->icount; - if (!tty) { - /* tty is not available anymore */ - issue_command(info, CHA, CMD_RXRESET); - if (debug_level >= DEBUG_LEVEL_ISR) - printk("%s(%d):rx_ready_async(tty=NULL)\n",__FILE__,__LINE__); - return; - } - if (tcd) { /* early termination, get FIFO count from RBCL register */ fifo_count = (unsigned char)(read_reg(info, CHA+RBCL) & 0x1f); @@ -958,7 +950,7 @@ static void rx_ready_async(MGSLPC_INFO *info, int tcd, struct tty_struct *tty) } if (work) - tty_flip_buffer_push(tty); + tty_flip_buffer_push(port); } @@ -1218,7 +1210,7 @@ static irqreturn_t mgslpc_isr(int dummy, void *dev_id) if (info->params.mode == MGSL_MODE_HDLC) rx_ready_hdlc(info, isr & IRQ_RXEOM); else - rx_ready_async(info, isr & IRQ_RXEOM, tty); + rx_ready_async(info, isr & IRQ_RXEOM); } /* transmit IRQs */ |