linux-kernel - [PATCH 08/24] staging: keucr: Remove NULL check before kfree

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Message-Id: <1299994157-11191-9-git-send-email-imirkin@alum.mit.edu>
Date:	Sun, 13 Mar 2011 00:29:01 -0500
From:	Ilia Mirkin <imirkin@...m.mit.edu>
To:	Greg Kroah-Hartman <gregkh@...e.de>
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH 08/24] staging: keucr: Remove NULL check before kfree

This patch was generated by the following semantic patch:
// <smpl>
@@ expression E; @@
- if (E != NULL) { kfree(E); }
+ kfree(E);

@@ expression E; @@
- if (E != NULL) { kfree(E); E = NULL; }
+ kfree(E);
+ E = NULL;
// </smpl>

Signed-off-by: Ilia Mirkin <imirkin@...m.mit.edu>
---
 drivers/staging/keucr/ms.c |   22 ++++++++--------------
 1 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/keucr/ms.c b/drivers/staging/keucr/ms.c
index 48496e4..a713721 100644
--- a/drivers/staging/keucr/ms.c
+++ b/drivers/staging/keucr/ms.c
@@ -244,8 +244,8 @@ int MS_CardInit(struct us_data *us)
 	result = MS_STATUS_SUCCESS;
 
 exit:
-	if (PageBuffer1)		kfree(PageBuffer1);
-    	if (PageBuffer0)		kfree(PageBuffer0);
+	kfree(PageBuffer1);
+    	kfree(PageBuffer0);
 
 	printk("MS_CardInit end\n");
 	return result;
@@ -280,7 +280,7 @@ int MS_LibCheckDisableBlock(struct us_data *us, WORD PhyBlock)
 	} while(1);
 
 exit:
-	if (PageBuf)	kfree(PageBuf);
+	kfree(PageBuf);
 	return result;
 }
 
@@ -324,17 +324,11 @@ void MS_LibFreeWriteBuf(struct us_data *us)
 //----- MS_LibFreeLogicalMap() ---------------------------------------
 int MS_LibFreeLogicalMap(struct us_data *us)
 {
-	if (us->MS_Lib.Phy2LogMap)
-	{
-		kfree(us->MS_Lib.Phy2LogMap);
-		us->MS_Lib.Phy2LogMap = NULL;
-	}
+	kfree(us->MS_Lib.Phy2LogMap);
+	us->MS_Lib.Phy2LogMap = NULL;
 
-	if (us->MS_Lib.Log2PhyMap)
-	{
-		kfree(us->MS_Lib.Log2PhyMap);
-		us->MS_Lib.Log2PhyMap = NULL;
-	}
+	kfree(us->MS_Lib.Log2PhyMap);
+	us->MS_Lib.Log2PhyMap = NULL;
 
     return 0;
 }
@@ -470,7 +464,7 @@ int MS_LibProcessBootBlock(struct us_data *us, WORD PhyBlock, BYTE *PageData)
 
 exit:
 	if (result)		MS_LibFreeLogicalMap(us);
-	if (PageBuffer)	kfree(PageBuffer);
+	kfree(PageBuffer);
 
 	result = 0;
 	return result;
-- 
1.7.3.4

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