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Date: Thu, 22 Jan 2015 05:54:10 -0800
From: Anshul Garg <aksgarg1989@...il.com>
To: akpm@...ux-foundation.org, levex@...ux.com,
felipe.contreras@...il.com, linux-kernel@...r.kernel.org
Cc: aksgarg1989@...il.com, anshul.g@...sung.com
Subject: [PATCH] lib/kstrtox.c clean kstrtoll function
From: Anshul Garg <aksgarg1989@...il.com>
Instead of having same code for negative and postive
integer, use sign variable for integer parsing.
Signed-off-by: Anshul Garg <aksgarg1989@...il.com>
---
lib/kstrtox.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)
diff --git a/lib/kstrtox.c b/lib/kstrtox.c
index ec8da78..744cbb0 100644
--- a/lib/kstrtox.c
+++ b/lib/kstrtox.c
@@ -146,23 +146,19 @@ EXPORT_SYMBOL(kstrtoull);
int kstrtoll(const char *s, unsigned int base, long long *res)
{
unsigned long long tmp;
- int rv;
+ int rv, sign = 1;
if (s[0] == '-') {
- rv = _kstrtoull(s + 1, base, &tmp);
- if (rv < 0)
- return rv;
- if ((long long)(-tmp) >= 0)
- return -ERANGE;
- *res = -tmp;
- } else {
- rv = kstrtoull(s, base, &tmp);
- if (rv < 0)
- return rv;
- if ((long long)tmp < 0)
- return -ERANGE;
- *res = tmp;
+ sign = -1;
+ s++;
}
+
+ rv = kstrtoull(s, base, &tmp);
+ if (rv < 0)
+ return rv;
+ if ((long long)tmp < 0)
+ return -ERANGE;
+ *res = sign * tmp;
return 0;
}
EXPORT_SYMBOL(kstrtoll);
--
1.7.9.5
---
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