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powerpc/rtas: Replaced simple_strtoull() with kstrtoull()

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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>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210526092020.554341-1-chenhuang5@huawei.com
This commit is contained in:
Chen Huang 2021-05-26 09:20:18 +00:00 committed by Michael Ellerman
parent 59510820ff
commit 08d61b46c5
1 changed files with 1 additions and 6 deletions
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7
arch/powerpc/kernel/rtas-proc.c
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@ -259,7 +259,6 @@ __initcall(proc_rtas_init);
static int parse_number(const char __user *p, size_t count, u64 *val) static int parse_number(const char __user *p, size_t count, u64 *val)
{ {
char buf[40]; char buf[40];
char *end;
if (count > 39) if (count > 39)
return -EINVAL; return -EINVAL;
@ -269,11 +268,7 @@ static int parse_number(const char __user *p, size_t count, u64 *val)
buf[count] = 0; buf[count] = 0;
*val = simple_strtoull(buf, &end, 10); return kstrtoull(buf, 10, val);
if (*end && *end != '\n')
return -EINVAL;
return 0;
} }
/* ****************************************************************** */ /* ****************************************************************** */