tty: serial: jsm_tty: fixed redundant variable issue.

The variable "len" gets assigned once and it's value copied to
"n", which is then used for the rest of the function.

This patch fixes the unnecessary variable reassignment by using "len"
throughout the function instead.

Signed-off-by: Jakob Østergaard Jensen <jakob.jensen.91@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/jsm/jsm_tty.c b/drivers/tty/serial/jsm/jsm_tty.c
index 00cac10ae75a878a11f9004e4235fb18b4984a80..c5ddfe542451f55d90f9e0b240c30668b188ef68 100644 (file)
--- a/drivers/tty/serial/jsm/jsm_tty.c
+++ b/drivers/tty/serial/jsm/jsm_tty.c
@@ -529,7 +529,6 @@ void jsm_input(struct jsm_channel *ch)
        int data_len;
        unsigned long lock_flags;
        int len = 0;
-       int n = 0;
        int s = 0;
        int i = 0;
 
@@ -597,16 +596,15 @@ void jsm_input(struct jsm_channel *ch)
        jsm_dbg(READ, &ch->ch_bd->pci_dev, "start 2\n");
 
        len = tty_buffer_request_room(port, data_len);
-       n = len;
 
        /*
-        * n now contains the most amount of data we can copy,
+        * len now contains the most amount of data we can copy,
         * bounded either by the flip buffer size or the amount
         * of data the card actually has pending...
         */
-       while (n) {
+       while (len) {
                s = ((head >= tail) ? head : RQUEUESIZE) - tail;
-               s = min(s, n);
+               s = min(s, len);
 
                if (s <= 0)
                        break;
@@ -637,7 +635,7 @@ void jsm_input(struct jsm_channel *ch)
                        tty_insert_flip_string(port, ch->ch_rqueue + tail, s);
                }
                tail += s;
-               n -= s;
+               len -= s;
                /* Flip queue if needed */
                tail &= rmask;
        }