linux-kernel - [PATCH 19/20] staging: lustre: ptlrpc: sec_plain: remove unneeded null test before free

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Message-Id: <1430509086-22132-3-git-send-email-Julia.Lawall@lip6.fr>
Date:	Fri,  1 May 2015 21:37:48 +0200
From:	Julia Lawall <Julia.Lawall@...6.fr>
To:	Oleg Drokin <oleg.drokin@...el.com>
Cc:	kernel-janitors@...r.kernel.org,
	Andreas Dilger <andreas.dilger@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	HPDD-discuss@...ts.01.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 19/20] staging: lustre: ptlrpc: sec_plain: remove unneeded null test before free

Kfree can cope with a null argument, so drop null tests.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ expression ptr; @@

- if (ptr != NULL)
  kfree(ptr);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

---
 drivers/staging/lustre/lustre/ptlrpc/sec_plain.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
index 604e511..989cdcd 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
@@ -384,8 +384,7 @@ struct ptlrpc_cli_ctx *plain_sec_install_ctx(struct plain_sec *plsec)
 	if (ctx) {
 		atomic_inc(&ctx->cc_refcount);
 
-		if (ctx_new)
-			kfree(ctx_new);
+		kfree(ctx_new);
 	} else if (ctx_new) {
 		ctx = ctx_new;
 

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