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authorXiongfeng Wang <wangxiongfeng2@huawei.com>2019-12-06 09:05:26 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-12-12 12:03:59 +0100
commit94345aee285334e9e12fc70572e3d9380791a64e (patch)
treeb06c885f388d340b50eaef4a5c916b4a09db1dac /drivers/tty/serial/amba-pl011.c
parenttty: serial: samsung: remove variable 'ufstat' set but not used (diff)
downloadlinux-94345aee285334e9e12fc70572e3d9380791a64e.tar.xz
linux-94345aee285334e9e12fc70572e3d9380791a64e.zip
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/tty/serial/amba-pl011.c')
-rw-r--r--drivers/tty/serial/amba-pl011.c6
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)