diff options
| author | Xiongfeng Wang | 2019-12-06 16:05:26 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-12-12 12:03:59 +0100 |
| commit | 94345aee285334e9e12fc70572e3d9380791a64e (patch) | |
| tree | b06c885f388d340b50eaef4a5c916b4a09db1dac /drivers | |
| parent | 98aee0c9444e5a5ce6de22cebc8071c8e140bcda (diff) | |
tty: serial: amba-pl011: remove set but unused variable
Fix the following warning:
drivers/tty/serial/amba-pl011.c: In function check_apply_cts_event_workaround:
drivers/tty/serial/amba-pl011.c:1461:15: warning: variable dummy_read set but not used [-Wunused-but-set-variable]
The data read is useless and can be dropped.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/1575619526-34482-1-git-send-email-wangxiongfeng2@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/amba-pl011.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 4b28134d596a..c5e9475feb47 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -1452,8 +1452,6 @@ static void pl011_modem_status(struct uart_amba_port *uap) static void check_apply_cts_event_workaround(struct uart_amba_port *uap) { - unsigned int dummy_read; - if (!uap->vendor->cts_event_workaround) return; @@ -1465,8 +1463,8 @@ static void check_apply_cts_event_workaround(struct uart_amba_port *uap) * single apb access will incur 2 pclk(133.12Mhz) delay, * so add 2 dummy reads */ - dummy_read = pl011_read(uap, REG_ICR); - dummy_read = pl011_read(uap, REG_ICR); + pl011_read(uap, REG_ICR); + pl011_read(uap, REG_ICR); } static irqreturn_t pl011_int(int irq, void *dev_id) |