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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Brett Rudley <brudley@broadcom.com>
Cc: Roland Vossen <rvossen@broadcom.com>,
	Arend van Spriel <arend@broadcom.com>,
	"Franky (Zhenhui) Lin" <frankyl@broadcom.com>,
	Kan Yan <kanyan@broadcom.com>,
	"John W. Linville" <linville@tuxdriver.com>,
	Pieter-Paul Giesberts <pieterpg@broadcom.com>,
	linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] brcm80211: remove an unneeded NULL check
Date: Mon, 14 May 2012 20:57:29 +0000	[thread overview]
Message-ID: <20120514205729.GD20836@elgon.mountain> (raw)

This code causes a static checker warning because "pi" gets dereferenced
before it is checked.  The dereference is inside the write_phy_reg()
function which is called from wlc_phy_write_txmacreg_nphy().

This code is only called from wlc_phy_init_nphy() and "pi" is a
valid pointer so we can remove the check for NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c
index 812b6e3..d6380f3 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c
@@ -14358,7 +14358,7 @@ void wlc_phy_nphy_tkip_rifs_war(struct brcms_phy *pi, u8 rifs)
 
 	wlc_phy_write_txmacreg_nphy(pi, holdoff, delay);
 
-	if (pi && pi->sh && (pi->sh->_rifs_phy != rifs))
+	if (pi->sh && (pi->sh->_rifs_phy != rifs))
 		pi->sh->_rifs_phy = rifs;
 }
 

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Brett Rudley <brudley@broadcom.com>
Cc: Roland Vossen <rvossen@broadcom.com>,
	Arend van Spriel <arend@broadcom.com>,
	"Franky (Zhenhui) Lin" <frankyl@broadcom.com>,
	Kan Yan <kanyan@broadcom.com>,
	"John W. Linville" <linville@tuxdriver.com>,
	Pieter-Paul Giesberts <pieterpg@broadcom.com>,
	linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] brcm80211: remove an unneeded NULL check
Date: Mon, 14 May 2012 23:57:29 +0300	[thread overview]
Message-ID: <20120514205729.GD20836@elgon.mountain> (raw)

This code causes a static checker warning because "pi" gets dereferenced
before it is checked.  The dereference is inside the write_phy_reg()
function which is called from wlc_phy_write_txmacreg_nphy().

This code is only called from wlc_phy_init_nphy() and "pi" is a
valid pointer so we can remove the check for NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c
index 812b6e3..d6380f3 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_n.c
@@ -14358,7 +14358,7 @@ void wlc_phy_nphy_tkip_rifs_war(struct brcms_phy *pi, u8 rifs)
 
 	wlc_phy_write_txmacreg_nphy(pi, holdoff, delay);
 
-	if (pi && pi->sh && (pi->sh->_rifs_phy != rifs))
+	if (pi->sh && (pi->sh->_rifs_phy != rifs))
 		pi->sh->_rifs_phy = rifs;
 }
 

             reply	other threads:[~2012-05-14 20:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-14 20:57 Dan Carpenter [this message]
2012-05-14 20:57 ` [patch] brcm80211: remove an unneeded NULL check Dan Carpenter
2012-05-15 14:24 ` Arend van Spriel
2012-05-15 14:24   ` Arend van Spriel

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