linux-kernel - [PATCH 3/3] staging: panel: remove initialization check

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Date:	Sun,  8 Mar 2015 23:07:26 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Willy Tarreau <willy@...a-x.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] staging: panel: remove initialization check

no need to monitor init_in_progress now as keypad_send_key() can only
be called after the timer is initialized. and timer is initialized
from keypad_init() which is in the attach section and can only execute
after the module has initialized.

Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---
 drivers/staging/panel/panel.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index b4c143a..16fee49 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -452,8 +452,6 @@ static struct pardevice *pprt;
 
 static int keypad_initialized;
 
-static char init_in_progress;
-
 static void (*lcd_write_cmd)(int);
 static void (*lcd_write_data)(int);
 static void (*lcd_clear_fast)(void);
@@ -1688,9 +1686,6 @@ static struct miscdevice keypad_dev = {
 
 static void keypad_send_key(const char *string, int max_len)
 {
-	if (init_in_progress)
-		return;
-
 	/* send the key to the device only if a process is attached to it. */
 	if (!atomic_read(&keypad_available)) {
 		while (max_len-- && keypad_buflen < KEYPAD_BUFFER && *string) {
@@ -2351,9 +2346,6 @@ static int __init panel_init_module(void)
 		break;
 	}
 
-	/* tells various subsystems about the fact that we are initializing */
-	init_in_progress = 1;
-
 	if (!lcd.enabled && !keypad.enabled) {
 		/* no device enabled, let's exit */
 		pr_err("driver version " PANEL_VERSION " disabled.\n");
@@ -2367,9 +2359,6 @@ static int __init panel_init_module(void)
 	else
 		pr_info("driver version " PANEL_VERSION
 			" not yet registered\n");
-	/* tells various subsystems about the fact that initialization
-	   is finished */
-	init_in_progress = 0;
 	return parport_register_driver(&panel_driver);
 }
 
-- 
1.8.1.2

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