linux-kernel - [2.6 patch] cpqhp_pushbutton_thread(): remove a pointless if() check

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Message-ID: <20071024162500.GS30533@stusta.de>
Date:	Wed, 24 Oct 2007 18:25:00 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	gregkh@...e.de
Cc:	linux-kernel@...r.kernel.org, linux-pci@...ey.karlin.mff.cuni.cz
Subject: [2.6 patch] cpqhp_pushbutton_thread(): remove a pointless if()
	check

The Coverity checker spotted that we'd have already oops'ed if "ctrl"
was NULL.

Additionally, "func" had just been checked for not being NULL.

Signed-off-by: Adrian Bunk <bunk@...nel.org>

---

This patch has been sent on:
- 14 Aug 2007

--- linux-2.6.23-rc1-mm2/drivers/pci/hotplug/cpqphp_ctrl.c.old	2007-08-08 14:00:24.000000000 +0200
+++ linux-2.6.23-rc1-mm2/drivers/pci/hotplug/cpqphp_ctrl.c	2007-08-08 14:01:16.000000000 +0200
@@ -1951,30 +1951,28 @@ void cpqhp_pushbutton_thread(unsigned lo
 	if (is_slot_enabled(ctrl, hp_slot)) {
 		p_slot->state = POWEROFF_STATE;
 		/* power Down board */
 		func = cpqhp_slot_find(p_slot->bus, p_slot->device, 0);
 		dbg("In power_down_board, func = %p, ctrl = %p\n", func, ctrl);
 		if (!func) {
 			dbg("Error! func NULL in %s\n", __FUNCTION__);
 			return ;
 		}
 
-		if (func != NULL && ctrl != NULL) {
-			if (cpqhp_process_SS(ctrl, func) != 0) {
-				amber_LED_on (ctrl, hp_slot);
-				green_LED_on (ctrl, hp_slot);
-				
-				set_SOGO(ctrl);
+		if (cpqhp_process_SS(ctrl, func) != 0) {
+			amber_LED_on (ctrl, hp_slot);
+			green_LED_on (ctrl, hp_slot);
+			
+			set_SOGO(ctrl);
 
-				/* Wait for SOBS to be unset */
-				wait_for_ctrl_irq (ctrl);
-			}
+			/* Wait for SOBS to be unset */
+			wait_for_ctrl_irq (ctrl);
 		}
 
 		p_slot->state = STATIC_STATE;
 	} else {
 		p_slot->state = POWERON_STATE;
 		/* slot is off */
 
 		func = cpqhp_slot_find(p_slot->bus, p_slot->device, 0);
 		dbg("In add_board, func = %p, ctrl = %p\n", func, ctrl);
 		if (!func) {

-
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