[PATCH] Evdev: Fix bug of comparing clk_type with clkid

From: Aniroop Mathur
Date: Wed Oct 28 2015 - 15:43:56 EST


From: Aniroop Mathur <a.mathur@xxxxxxxxxxx>

clk_type and clkid stores different predefined clock identification
values so they cannot be compared.
Therefore, lets fix it to avoid unexpected results.

Signed-off-by: Aniroop Mathur <a.mathur@xxxxxxxxxxx>
Signed-off-by: Aniroop Mathur <aniroop.mathur@xxxxxxxxx>
---
drivers/input/evdev.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 08d4964..0d40f6f 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -56,7 +56,7 @@ struct evdev_client {
struct fasync_struct *fasync;
struct evdev *evdev;
struct list_head node;
- int clk_type;
+ unsigned int clk_type;
bool revoked;
unsigned int bufsize;
struct input_event buffer[];
@@ -146,9 +146,7 @@ static void evdev_queue_syn_dropped(struct evdev_client *client)
static int evdev_set_clk_type(struct evdev_client *client, unsigned int clkid)
{
unsigned long flags;
-
- if (client->clk_type == clkid)
- return 0;
+ unsigned int prev_clk_type = client->clk_type;

switch (clkid) {

@@ -165,6 +163,10 @@ static int evdev_set_clk_type(struct evdev_client *client, unsigned int clkid)
return -EINVAL;
}

+ /* No need to flush if clk_type is same as before */
+ if (client->clk_type == prev_clk_type)
+ return 0;
+
/*
* Flush pending events and queue SYN_DROPPED event,
* but only if the queue is not empty.
--
2.6.2

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