[PATCH] memstick: r592: remove unused variable

[Jiapeng Chong]

Fix the following clang warning:

drivers/memstick/host/r592.c:363:6: warning: variable ‘len’ set but not
used [-Wunused-but-set-variable].

Reported-by: Abaci Robot <ab...@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.ch...@linux.alibaba.com>
---
 drivers/memstick/host/r592.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index d2ef463..026fada 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -360,12 +360,11 @@ static void r592_write_fifo_pio(struct r592_device *dev,
 static void r592_flush_fifo_write(struct r592_device *dev)
 {
        u8 buffer[4] = { 0 };
-       int len;
 
        if (kfifo_is_empty(&dev->pio_fifo))
                return;
 
-       len = kfifo_out(&dev->pio_fifo, buffer, 4);
+       kfifo_out(&dev->pio_fifo, buffer, 4);
        r592_write_reg_raw_be(dev, R592_FIFO_PIO, *(u32 *)buffer);
 }
 
-- 
1.8.3.1