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From:   Chen Huang <chenhuang5@huawei.com>
To:     Michael Ellerman <mpe@ellerman.id.au>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        "Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
        Juergen Gross <jgross@suse.com>,
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        Joel Becker <jlbec@evilplan.org>,
        Joseph Qi <joseph.qi@linux.alibaba.com>,
        Nathan Lynch <nathanl@linux.ibm.com>,
        Andrew Donnellan <ajd@linux.ibm.com>,
        Alexey Kardashevskiy <aik@ozlabs.ru>,
        Andrew Morton <akpm@linux-foundation.org>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        "Jens Axboe" <axboe@kernel.dk>,
        Yang Yingliang <yangyingliang@huawei.com>,
        "Masahiro Yamada" <masahiroy@kernel.org>,
        Dan Carpenter <dan.carpenter@oracle.com>
CC:     <linuxppc-dev@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>,
        <xen-devel@lists.xenproject.org>, <ocfs2-devel@oss.oracle.com>,
        Chen Huang <chenhuang5@huawei.com>
Subject: [PATCH -next 1/3] powerpc/rtas: Replaced simple_strtoull() with kstrtoull()
Date:   Wed, 26 May 2021 09:20:18 +0000
Message-ID: <20210526092020.554341-1-chenhuang5@huawei.com>
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Precedence: bulk

The simple_strtoull() function is deprecated in some situation, since
it does not check for the range overflow, use kstrtoull() instead.

Signed-off-by: Chen Huang <chenhuang5@huawei.com>
---
 arch/powerpc/kernel/rtas-proc.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 6857a5b0a1c3..117886782ebd 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -259,7 +259,6 @@ __initcall(proc_rtas_init);
 static int parse_number(const char __user *p, size_t count, u64 *val)
 {
 	char buf[40];
-	char *end;
 
 	if (count > 39)
 		return -EINVAL;
@@ -269,11 +268,7 @@ static int parse_number(const char __user *p, size_t count, u64 *val)
 
 	buf[count] = 0;
 
-	*val = simple_strtoull(buf, &end, 10);
-	if (*end && *end != '\n')
-		return -EINVAL;
-
-	return 0;
+	return kstrtoull(buf, 10, val);
 }
 
 /* ****************************************************************** */
-- 
2.25.1