sound: oss: Use setup_timer and mod_timer.

The function setup_timer combines the initialization of a timer with the
initialization of the timer's function and data fields. The mulitiline
code for timer initialization is now replaced with function setup_timer.

Also, quoting the mod_timer() function comment:
-> mod_timer() is a more efficient way to update the expire field of an
   active timer (if the timer is inactive it will be activated).

Use setup_timer() and mod_timer() to setup and arm a timer, making the
code compact and aid readablity.
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/oss/waveartist.c

@@ -1414,11 +1414,9 @@ attach_waveartist(struct address_info *hw, const struct waveartist_mixer_info *m
 	else {
 #ifdef CONFIG_ARCH_NETWINDER
 		if (machine_is_netwinder()) {
-			init_timer(&vnc_timer);
-			vnc_timer.function = vnc_slider_tick;
-			vnc_timer.expires  = jiffies;
-			vnc_timer.data     = nr_waveartist_devs;
-			add_timer(&vnc_timer);
+			setup_timer(&vnc_timer, vnc_slider_tick,
+				    nr_waveartist_devs);
+			mod_timer(&vnc_timer, jiffies);
 
 			vnc_configure_mixer(devc, 0);