linux-kernel - [PATCH] block-AoE: Delete an error message for a failed memory allocation in aoechr

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Date:   Sun, 6 Aug 2017 17:34:15 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     kernel-janitors@...r.kernel.org, "Ed L. Cashin" <ed.cashin@....org>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] block-AoE: Delete an error message for a failed memory
 allocation in aoechr_error()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 6 Aug 2017 17:27:18 +0200

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/block/aoe/aoechr.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index ab41be625a53..8eea2529da20 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -140,10 +140,8 @@ bail:		spin_unlock_irqrestore(&emsgs_lock, flags);
 	}

 	mp = kmemdup(msg, n, GFP_ATOMIC);
-	if (mp == NULL) {
-		printk(KERN_ERR "aoe: allocation failure, len=%ld\n", n);
+	if (!mp)
 		goto bail;
-	}

 	em->msg = mp;
 	em->flags |= EMFL_VALID;
-- 
2.13.4