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[PATCH] ieee80211 Switched to sscanf in store_debug_level

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Switched to sscanf as per friendly comment in store_debug_level.

Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
James Ketrenos 2005-09-13 17:42:53 -05:00 committed by Jeff Garzik
parent 18294d8727
commit 262d8e4677
1 changed files with 6 additions and 20 deletions
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26
net/ieee80211/ieee80211_module.c
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@ -195,34 +195,20 @@ static int show_debug_level(char *page, char **start, off_t offset,
static int store_debug_level(struct file *file, const char __user * buffer,
unsigned long count, void *data)
{
char buf[] = "0x00000000";
char *p = (char *)buf;
char buf[] = "0x00000000\n";
unsigned long len = min((unsigned long)sizeof(buf) - 1, count);
unsigned long val;
if (count > sizeof(buf) - 1)
count = sizeof(buf) - 1;
if (copy_from_user(buf, buffer, count))
if (copy_from_user(buf, buffer, len))
return count;
buf[count] = 0;
/*
* what a FPOS... What, sscanf(buf, "%i", &val) would be too
* scary?
*/
if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
p++;
if (p[0] == 'x' || p[0] == 'X')
p++;
val = simple_strtoul(p, &p, 16);
} else
val = simple_strtoul(p, &p, 10);
if (p == buf)
buf[len] = 0;
if (sscanf(buf, "%li", &val) != 1)
printk(KERN_INFO DRV_NAME
": %s is not in hex or decimal form.\n", buf);
else
ieee80211_debug_level = val;
return strlen(buf);
return strnlen(buf, len);
}
static int __init ieee80211_init(void)