Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: psmouse - remove unneeded '\n' from psmouse.proto parameter
  Input: atkbd - restore LED state at reconnect
  Input: force LED reset on resume
  Input: fix locking in memoryless force-feedback devices

6 files changed, 58 insertions, 36 deletions

diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
index 72c63e5..38df81f 100644
--- a/drivers/input/ff-core.c
+++ b/drivers/input/ff-core.c
@@ -337,16 +337,16 @@ int input_ff_create(struct input_dev *dev, int max_effects)
 	dev->ff = ff;
 	dev->flush = flush_effects;
 	dev->event = input_ff_event;
-	set_bit(EV_FF, dev->evbit);
+	__set_bit(EV_FF, dev->evbit);
 
 	/* Copy "true" bits into ff device bitmap */
 	for (i = 0; i <= FF_MAX; i++)
 		if (test_bit(i, dev->ffbit))
-			set_bit(i, ff->ffbit);
+			__set_bit(i, ff->ffbit);
 
 	/* we can emulate RUMBLE with periodic effects */
 	if (test_bit(FF_PERIODIC, ff->ffbit))
-		set_bit(FF_RUMBLE, dev->ffbit);
+		__set_bit(FF_RUMBLE, dev->ffbit);
 
 	return 0;
 }
@@ -362,12 +362,14 @@ EXPORT_SYMBOL_GPL(input_ff_create);
  */
 void input_ff_destroy(struct input_dev *dev)
 {
-	clear_bit(EV_FF, dev->evbit);
-	if (dev->ff) {
-		if (dev->ff->destroy)
-			dev->ff->destroy(dev->ff);
-		kfree(dev->ff->private);
-		kfree(dev->ff);
+	struct ff_device *ff = dev->ff;
+
+	__clear_bit(EV_FF, dev->evbit);
+	if (ff) {
+		if (ff->destroy)
+			ff->destroy(ff);
+		kfree(ff->private);
+		kfree(ff);
 		dev->ff = NULL;
 	}
 }
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
index 2d1415e..b483b29 100644
--- a/drivers/input/ff-memless.c
+++ b/drivers/input/ff-memless.c
@@ -61,7 +61,6 @@ struct ml_device {
 	struct ml_effect_state states[FF_MEMLESS_EFFECTS];
 	int gain;
 	struct timer_list timer;
-	spinlock_t timer_lock;
 	struct input_dev *dev;
 
 	int (*play_effect)(struct input_dev *dev, void *data,
@@ -368,38 +367,38 @@ static void ml_effect_timer(unsigned long timer_data)
 {
 	struct input_dev *dev = (struct input_dev *)timer_data;
 	struct ml_device *ml = dev->ff->private;
+	unsigned long flags;
 
 	debug("timer: updating effects");
 
-	spin_lock(&ml->timer_lock);
+	spin_lock_irqsave(&dev->event_lock, flags);
 	ml_play_effects(ml);
-	spin_unlock(&ml->timer_lock);
+	spin_unlock_irqrestore(&dev->event_lock, flags);
 }
 
+/*
+ * Sets requested gain for FF effects. Called with dev->event_lock held.
+ */
 static void ml_ff_set_gain(struct input_dev *dev, u16 gain)
 {
 	struct ml_device *ml = dev->ff->private;
 	int i;
 
-	spin_lock_bh(&ml->timer_lock);
-
 	ml->gain = gain;
 
 	for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
 		__clear_bit(FF_EFFECT_PLAYING, &ml->states[i].flags);
 
 	ml_play_effects(ml);
-
-	spin_unlock_bh(&ml->timer_lock);
 }
 
+/*
+ * Start/stop specified FF effect. Called with dev->event_lock held.
+ */
 static int ml_ff_playback(struct input_dev *dev, int effect_id, int value)
 {
 	struct ml_device *ml = dev->ff->private;
 	struct ml_effect_state *state = &ml->states[effect_id];
-	unsigned long flags;
-
-	spin_lock_irqsave(&ml->timer_lock, flags);
 
 	if (value > 0) {
 		debug("initiated play");
@@ -425,8 +424,6 @@ static int ml_ff_playback(struct input_dev *dev, int effect_id, int value)
 		ml_play_effects(ml);
 	}
 
-	spin_unlock_irqrestore(&ml->timer_lock, flags);
-
 	return 0;
 }
 
@@ -436,7 +433,7 @@ static int ml_ff_upload(struct input_dev *dev,
 	struct ml_device *ml = dev->ff->private;
 	struct ml_effect_state *state = &ml->states[effect->id];
 
-	spin_lock_bh(&ml->timer_lock);
+	spin_lock_irq(&dev->event_lock);
 
 	if (test_bit(FF_EFFECT_STARTED, &state->flags)) {
 		__clear_bit(FF_EFFECT_PLAYING, &state->flags);
@@ -448,7 +445,7 @@ static int ml_ff_upload(struct input_dev *dev,
 		ml_schedule_timer(ml);
 	}
 
-	spin_unlock_bh(&ml->timer_lock);
+	spin_unlock_irq(&dev->event_lock);
 
 	return 0;
 }
@@ -482,7 +479,6 @@ int input_ff_create_memless(struct input_dev *dev, void *data,
 	ml->private = data;
 	ml->play_effect = play_effect;
 	ml->gain = 0xffff;
-	spin_lock_init(&ml->timer_lock);
 	setup_timer(&ml->timer, ml_effect_timer, (unsigned long)dev);
 
 	set_bit(FF_GAIN, dev->ffbit);
diff --git a/drivers/input/input.c b/drivers/input/input.c
index cc763c9..2266ecb 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1292,17 +1292,24 @@ static int input_dev_uevent(struct device *device, struct kobj_uevent_env *env)
 	return 0;
 }
 
-#define INPUT_DO_TOGGLE(dev, type, bits, on)			\
-	do {							\
-		int i;						\
-		if (!test_bit(EV_##type, dev->evbit))		\
-			break;					\
-		for (i = 0; i < type##_MAX; i++) {		\
-			if (!test_bit(i, dev->bits##bit) ||	\
-			    !test_bit(i, dev->bits))		\
-				continue;			\
-			dev->event(dev, EV_##type, i, on);	\
-		}						\
+#define INPUT_DO_TOGGLE(dev, type, bits, on)				\
+	do {								\
+		int i;							\
+		bool active;						\
+									\
+		if (!test_bit(EV_##type, dev->evbit))			\
+			break;						\
+									\
+		for (i = 0; i < type##_MAX; i++) {			\
+			if (!test_bit(i, dev->bits##bit))		\
+				continue;				\
+									\
+			active = test_bit(i, dev->bits);		\
+			if (!active && !on)				\
+				continue;				\
+									\
+			dev->event(dev, EV_##type, i, on ? active : 0);	\
+		}							\
 	} while (0)
 
 #ifdef CONFIG_PM
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 4452eab..28e6110 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -1174,6 +1174,18 @@ static int atkbd_reconnect(struct serio *serio)
 			return -1;
 
 		atkbd_activate(atkbd);
+
+		/*
+		 * Restore LED state and repeat rate. While input core
+		 * will do this for us at resume time reconnect may happen
+		 * because user requested it via sysfs or simply because
+		 * keyboard was unplugged and plugged in again so we need
+		 * to do it ourselves here.
+		 */
+		atkbd_set_leds(atkbd);
+		if (!atkbd->softrepeat)
+			atkbd_set_repeat_rate(atkbd);
+
 	}
 
 	atkbd_enable(atkbd);
@@ -1422,6 +1434,7 @@ static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
 
 		atkbd->dev = new_dev;
 		atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
+		atkbd_reset_state(atkbd);
 		atkbd_activate(atkbd);
 		atkbd_set_keycode_table(atkbd);
 		atkbd_set_device_attrs(atkbd);
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 690aed9..5bd6484 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -1673,7 +1673,7 @@ static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp)
 {
 	int type = *((unsigned int *)kp->arg);
 
-	return sprintf(buffer, "%s\n", psmouse_protocol_by_type(type)->name);
+	return sprintf(buffer, "%s", psmouse_protocol_by_type(type)->name);
 }
 
 static int __init psmouse_init(void)
diff --git a/include/linux/input.h b/include/linux/input.h
index 0ccfc30..c2b1a7d 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -1377,6 +1377,10 @@ extern struct class input_class;
  * methods; erase() is optional. set_gain() and set_autocenter() need
  * only be implemented if driver sets up FF_GAIN and FF_AUTOCENTER
  * bits.
+ *
+ * Note that playback(), set_gain() and set_autocenter() are called with
+ * dev->event_lock spinlock held and interrupts off and thus may not
+ * sleep.
  */
 struct ff_device {
 	int (*upload)(struct input_dev *dev, struct ff_effect *effect,