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tty: serial: qcom_geni_serial: Use min3 to find minimum of 3 values

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Use min3 helper to calculate the minimum value of 3 variables.

Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Karthikeyan Ramasubramanian 2018-05-03 14:14:35 -06:00 committed by Greg Kroah-Hartman
parent 6a10635e90
commit 8e70c47c48
1 changed files with 1 additions and 5 deletions
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6
drivers/tty/serial/qcom_geni_serial.c
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@ -586,11 +586,7 @@ static void qcom_geni_serial_handle_tx(struct uart_port *uport)
avail = (port->tx_fifo_depth - port->tx_wm) * port->tx_bytes_pw;
tail = (xmit->tail + port->xmit_size) & (UART_XMIT_SIZE - 1);
if (chunk > (UART_XMIT_SIZE - tail))
chunk = UART_XMIT_SIZE - tail;
if (chunk > avail)
chunk = avail;
chunk = min3((size_t)chunk, (size_t)(UART_XMIT_SIZE - tail), avail);
if (!chunk)
goto out_write_wakeup;