[PATCH] Input:Flush client events after clk_type change

[Anshul Garg <aksgarg1989@gmail.com>]

From: Anshul Garg <aksgarg1989@gmail.com>

Since the client clk_type is changed , flush pending
events from client buffer and queue SYN_DROPPED event.
Added check for duplicate clk_type change request.

Signed-off-by: Anshul Garg <anshul.g@samsung.com>
---
 drivers/input/evdev.c |    9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index b1a52ab..91330e1 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -64,6 +64,9 @@ struct evdev_client {
 
 static int evdev_set_clk_type(struct evdev_client *client, unsigned int clkid)
 {
+	if (client->clk_type == clkid)
+		return 0;
+
 	switch (clkid) {
 
 	case CLOCK_REALTIME:
@@ -78,7 +81,11 @@ static int evdev_set_clk_type(struct evdev_client *client, unsigned int clkid)
 	default:
 		return -EINVAL;
 	}
-
+
+	/* Flush clients events after clk_type is changed
+	 * and queue SYN_DROPPED event.*/
+	client->packet_head = client->head = client->tail;
+	evdev_queue_syn_dropped(client);
 	return 0;
 }
 
-- 
1.7.9.5


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