[PATCH v2] pcmcia/cm4000: remove useless variable tmp

[Alex Shi]

No one care the value of 'tmp' in func cmm_write. better to remove it.

Arnd Bergmann pointed just remove may cause warning in some arch where 
inb is macro, and suggest add a cast '(void)' for this. Thanks!

Signed-off-by: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
Cc: Harald Welte <laforge@xxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
 drivers/char/pcmcia/cm4000_cs.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index 15bf585af5d3..0f55bed6c71f 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -1048,7 +1048,6 @@ static ssize_t cmm_write(struct file *filp, const char __user *buf,
 	struct cm4000_dev *dev = filp->private_data;
 	unsigned int iobase = dev->p_dev->resource[0]->start;
 	unsigned short s;
-	unsigned char tmp;
 	unsigned char infolen;
 	unsigned char sendT0;
 	unsigned short nsend;
@@ -1146,7 +1145,7 @@ static ssize_t cmm_write(struct file *filp, const char __user *buf,
 	set_cardparameter(dev);
 
 	/* dummy read, reset flag procedure received */
-	tmp = inb(REG_FLAGS1(iobase));
+	(void)inb(REG_FLAGS1(iobase));
 
 	dev->flags1 = 0x20	/* T_Active */
 	    | (sendT0)
-- 
1.8.3.1