drivers: isdn: capi: use simple_strtol to convert numbers
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Tilman Schmidt <tilman@imap.cc>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
index 2978bda..e54e79d 100644
--- a/drivers/isdn/capi/capidrv.c
+++ b/drivers/isdn/capi/capidrv.c
@@ -1515,8 +1515,13 @@
while (*s) {
int digit1 = 0;
int digit2 = 0;
- if (!isdigit(*s)) return -3;
- while (isdigit(*s)) { digit1 = digit1*10 + (*s - '0'); s++; }
+ char *endp;
+
+ digit1 = simple_strtoul(s, &endp, 10);
+ if (s == endp)
+ return -3;
+ s = endp;
+
if (digit1 <= 0 || digit1 > 30) return -4;
if (*s == 0 || *s == ',' || *s == ' ') {
bmask |= (1 << digit1);
@@ -1526,8 +1531,12 @@
}
if (*s != '-') return -5;
s++;
- if (!isdigit(*s)) return -3;
- while (isdigit(*s)) { digit2 = digit2*10 + (*s - '0'); s++; }
+
+ digit2 = simple_strtoul(s, &endp, 10);
+ if (s == endp)
+ return -3;
+ s = endp;
+
if (digit2 <= 0 || digit2 > 30) return -4;
if (*s == 0 || *s == ',' || *s == ' ') {
if (digit1 > digit2)