linux-kernel - [PATCH] mtdoops: Delete an error message for a failed memory allocation in two functions

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Date:   Thu, 4 Jan 2018 21:24:12 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-mtd@...ts.infradead.org,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Brian Norris <computersforpeace@...il.com>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>,
        David Woodhouse <dwmw2@...radead.org>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] mtdoops: Delete an error message for a failed memory
 allocation in two functions

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Thu, 4 Jan 2018 21:10:56 +0100

Omit an extra message for a memory allocation failure in these functions.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/mtd/mtdoops.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 97bb8f6304d4..ea8619ec970b 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -352,10 +352,8 @@ static void mtdoops_notify_add(struct mtd_info *mtd)
 	/* oops_page_used is a bit field */
 	cxt->oops_page_used = vmalloc(DIV_ROUND_UP(mtdoops_pages,
 			BITS_PER_LONG) * sizeof(unsigned long));
-	if (!cxt->oops_page_used) {
-		printk(KERN_ERR "mtdoops: could not allocate page array\n");
+	if (!cxt->oops_page_used)
 		return;
-	}
 
 	cxt->dump.max_reason = KMSG_DUMP_OOPS;
 	cxt->dump.dump = mtdoops_do_dump;
@@ -420,10 +418,9 @@ static int __init mtdoops_init(void)
 		cxt->mtd_index = mtd_index;
 
 	cxt->oops_buf = vmalloc(record_size);
-	if (!cxt->oops_buf) {
-		printk(KERN_ERR "mtdoops: failed to allocate buffer workspace\n");
+	if (!cxt->oops_buf)
 		return -ENOMEM;
-	}
+
 	memset(cxt->oops_buf, 0xff, record_size);
 
 	INIT_WORK(&cxt->work_erase, mtdoops_workfunc_erase);
-- 
2.15.1