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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-26 05:36:58 +0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-26 05:36:58 +0400 |
| commit | 50d1e9302bab7d35dae7146f8c468e0943015616 (patch) | |
| tree | fa05320f4a297bd582686574cf94ba444e264b3f /drivers/serial/8250.c | |
| parent | 7cc2835083aedfde42de02301005a5555e00c4b1 (diff) | |
| parent | dc4ccfd15d4fc7a91ddf222bc5eed5cc4bcf10e6 (diff) | |
| download | linux-50d1e9302bab7d35dae7146f8c468e0943015616.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/crypto-2.6
Diffstat (limited to 'drivers/serial/8250.c')
| -rw-r--r-- | drivers/serial/8250.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index 2b1ea3d4c4f4..891e1dd65f24 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -1891,8 +1891,8 @@ static int serial8250_get_poll_char(struct uart_port *port) struct uart_8250_port *up = (struct uart_8250_port *)port; unsigned char lsr = serial_inp(up, UART_LSR); - while (!(lsr & UART_LSR_DR)) - lsr = serial_inp(up, UART_LSR); + if (!(lsr & UART_LSR_DR)) + return NO_POLL_CHAR; return serial_inp(up, UART_RX); } |