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Diffstat (limited to 'src/drivers/uart/uart8250mem.c')
| -rw-r--r-- | src/drivers/uart/uart8250mem.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/drivers/uart/uart8250mem.c b/src/drivers/uart/uart8250mem.c index 4e53a92a46..a142cb111a 100644 --- a/src/drivers/uart/uart8250mem.c +++ b/src/drivers/uart/uart8250mem.c @@ -82,8 +82,10 @@ static int uart8250_mem_can_rx_byte(void *base) static unsigned char uart8250_mem_rx_byte(void *base) { unsigned long int i = SINGLE_CHAR_TIMEOUT; - while (i-- && !uart8250_mem_can_rx_byte(base)) + while (i && !uart8250_mem_can_rx_byte(base)) { udelay(1); + i--; + } if (i) return uart8250_read(base, UART8250_RBR); else |