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drivers: isdn: remove custom strtoul()

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In this case we safe to use strict_strtoul().

Signed-off-by: Andy Shevchenko <[email protected]>
Cc: Karsten Keil <[email protected]>
Cc: [email protected]
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Andy Shevchenko 2010-07-15 02:37:19 +00:00 • committed by David S. Miller
commit 3944ad6848
1 changed files with 6 additions and 28 deletions
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32
drivers/isdn/hysdn/hysdn_proclog.c
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@ -16,6 +16,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/kernel.h>
#include "hysdn_defs.h"
@ -155,9 +156,8 @@ static ssize_t
hysdn_log_write(struct file *file, const char __user *buf, size_t count, loff_t * off)
{
unsigned long u = 0;
int found = 0;
unsigned char *cp, valbuf[128];
long base = 10;
int rc;
unsigned char valbuf[128];
hysdn_card *card = file->private_data;
if (count > (sizeof(valbuf) - 1))
@ -166,32 +166,10 @@ hysdn_log_write(struct file *file, const char __user *buf, size_t count, loff_t
return (-EFAULT); /* copy failed */
valbuf[count] = 0; /* terminating 0 */
cp = valbuf;
if ((count > 2) && (valbuf[0] == '0') && (valbuf[1] == 'x')) {
cp += 2; /* pointer after hex modifier */
base = 16;
}
/* scan the input for debug flags */
while (*cp) {
if ((*cp >= '0') && (*cp <= '9')) {
found = 1;
u *= base; /* adjust to next digit */
u += *cp++ - '0';
continue;
}
if (base != 16)
break; /* end of number */
if ((*cp >= 'a') && (*cp <= 'f')) {
found = 1;
u *= base; /* adjust to next digit */
u += *cp++ - 'a' + 10;
continue;
}
break; /* terminated */
}
rc = strict_strtoul(valbuf, 0, &u);
if (found) {
if (rc == 0) {
card->debug_flags = u; /* remember debug flags */
hysdn_addlog(card, "debug set to 0x%lx", card->debug_flags);
}