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serial: 8250_uniphier: fix clearing divisor latch access bit

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At this point, 'value' is always a byte, then this code is clearing
bit 15, which is already clear.  I meant to clear bit 7.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reported-by: Denys Vlasenko <dvlasenk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Masahiro Yamada 2016-10-24 17:00:28 +09:00 committed by Greg Kroah-Hartman
parent 0ead21ad25
commit 09065c5f0f
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/8250/8250_uniphier.c
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@ -99,7 +99,7 @@ static void uniphier_serial_out(struct uart_port *p, int offset, int value)
case UART_LCR:
valshift = UNIPHIER_UART_LCR_SHIFT;
/* Divisor latch access bit does not exist. */
value &= ~(UART_LCR_DLAB << valshift);
value &= ~UART_LCR_DLAB;
/* fall through */
case UART_MCR:
offset = UNIPHIER_UART_LCR_MCR;