diff options
| -rw-r--r-- | drivers/net/netconsole.c | 62 |
1 files changed, 14 insertions, 48 deletions
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index eb41e44921e6..62fdbaa1fb60 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -242,34 +242,6 @@ static struct netconsole_target *to_target(struct config_item *item) } /* - * Wrapper over simple_strtol (base 10) with sanity and range checking. - * We return (signed) long only because we may want to return errors. - * Do not use this to convert numbers that are allowed to be negative. - */ -static long strtol10_check_range(const char *cp, long min, long max) -{ - long ret; - char *p = (char *) cp; - - WARN_ON(min < 0); - WARN_ON(max < min); - - ret = simple_strtol(p, &p, 10); - - if (*p && (*p != '\n')) { - printk(KERN_ERR "netconsole: invalid input\n"); - return -EINVAL; - } - if ((ret < min) || (ret > max)) { - printk(KERN_ERR "netconsole: input %ld must be between " - "%ld and %ld\n", ret, min, max); - return -EINVAL; - } - - return ret; -} - -/* * Attribute operations for netconsole_target. */ @@ -327,12 +299,14 @@ static ssize_t store_enabled(struct netconsole_target *nt, const char *buf, size_t count) { + int enabled; int err; - long enabled; - enabled = strtol10_check_range(buf, 0, 1); - if (enabled < 0) - return enabled; + err = kstrtoint(buf, 10, &enabled); + if (err < 0) + return err; + if (enabled < 0 || enabled > 1) + return -EINVAL; if (enabled) { /* 1 */ @@ -384,8 +358,7 @@ static ssize_t store_local_port(struct netconsole_target *nt, const char *buf, size_t count) { - long local_port; -#define __U16_MAX ((__u16) ~0U) + int rv; if (nt->enabled) { printk(KERN_ERR "netconsole: target (%s) is enabled, " @@ -394,12 +367,9 @@ static ssize_t store_local_port(struct netconsole_target *nt, return -EINVAL; } - local_port = strtol10_check_range(buf, 0, __U16_MAX); - if (local_port < 0) - return local_port; - - nt->np.local_port = local_port; - + rv = kstrtou16(buf, 10, &nt->np.local_port); + if (rv < 0) + return rv; return strnlen(buf, count); } @@ -407,8 +377,7 @@ static ssize_t store_remote_port(struct netconsole_target *nt, const char *buf, size_t count) { - long remote_port; -#define __U16_MAX ((__u16) ~0U) + int rv; if (nt->enabled) { printk(KERN_ERR "netconsole: target (%s) is enabled, " @@ -417,12 +386,9 @@ static ssize_t store_remote_port(struct netconsole_target *nt, return -EINVAL; } - remote_port = strtol10_check_range(buf, 0, __U16_MAX); - if (remote_port < 0) - return remote_port; - - nt->np.remote_port = remote_port; - + rv = kstrtou16(buf, 10, &nt->np.remote_port); + if (rv < 0) + return rv; return strnlen(buf, count); } |