diff options
| author | Peter Hüwe <PeterHuewe@gmx.de> | 2012-04-14 17:42:59 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-04-15 11:23:31 +0400 |
| commit | 8831a3f2c9ee7d952e6d7a018d11c0c9c5b56749 (patch) | |
| tree | 8e3f7c54f9fc5aa95be9be0fdd95ade6bff8ca85 /drivers/isdn | |
| parent | cf22f9a2b83e72082c43ef5c942d5daf9301da8e (diff) | |
| download | linux-8831a3f2c9ee7d952e6d7a018d11c0c9c5b56749.tar.xz | |
isdn/hysdn: Convert to kstrtoul_from_user
This patch replaces the code for getting an number from a
userspace buffer by a simple call to kstroul_from_user.
This makes it easier to read and less error prone.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn')
| -rw-r--r-- | drivers/isdn/hysdn/hysdn_proclog.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/drivers/isdn/hysdn/hysdn_proclog.c b/drivers/isdn/hysdn/hysdn_proclog.c index ba91333e3e41..88e4f0ee073c 100644 --- a/drivers/isdn/hysdn/hysdn_proclog.c +++ b/drivers/isdn/hysdn/hysdn_proclog.c @@ -156,17 +156,9 @@ static ssize_t hysdn_log_write(struct file *file, const char __user *buf, size_t count, loff_t *off) { int rc; - unsigned char valbuf[128]; hysdn_card *card = file->private_data; - if (count > (sizeof(valbuf) - 1)) - count = sizeof(valbuf) - 1; /* limit length */ - if (copy_from_user(valbuf, buf, count)) - return (-EFAULT); /* copy failed */ - - valbuf[count] = 0; /* terminating 0 */ - - rc = kstrtoul(valbuf, 0, &card->debug_flags); + rc = kstrtoul_from_user(buf, count, 0, &card->debug_flags); if (rc < 0) return rc; hysdn_addlog(card, "debug set to 0x%lx", card->debug_flags); |