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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-02-25 21:41:34 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-02-25 21:41:34 +0100 |
| commit | 2a2d10f386c1bacabe1a530c06dc8488eac419e5 (patch) | |
| tree | 4606a4a3bafa42a8aa70e001d35883956a0f0589 /drivers/serial | |
| parent | Merge branch 'arm/clock-event' of git://git.pengutronix.de/git/ukl/linux-2.6 ... (diff) | |
| parent | [ARM] MV78xx0: Support for Buffalo WXL (Terastation Duo) (diff) | |
| download | linux-2a2d10f386c1bacabe1a530c06dc8488eac419e5.tar.xz linux-2a2d10f386c1bacabe1a530c06dc8488eac419e5.zip | |
Merge branch 'for-rmk' of git://git.marvell.com/orion into devel-stable
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/8250.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index c3e37c8e7e26..e9b15c3746fa 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -83,6 +83,9 @@ static unsigned int skip_txen_test; /* force skip of txen test at init time */ #define PASS_LIMIT 256 +#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE) + + /* * We default to IRQ0 for the "no irq" hack. Some * machine types want others as well - they're free @@ -1792,7 +1795,7 @@ static unsigned int serial8250_tx_empty(struct uart_port *port) up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS; spin_unlock_irqrestore(&up->port.lock, flags); - return lsr & UART_LSR_TEMT ? TIOCSER_TEMT : 0; + return (lsr & BOTH_EMPTY) == BOTH_EMPTY ? TIOCSER_TEMT : 0; } static unsigned int serial8250_get_mctrl(struct uart_port *port) @@ -1850,8 +1853,6 @@ static void serial8250_break_ctl(struct uart_port *port, int break_state) spin_unlock_irqrestore(&up->port.lock, flags); } -#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE) - /* * Wait for transmitter & holding register to empty */ |