libertas: check bounds and only use decimal for sysfs persistent features.

Some persistent settings were using hex and others decimal.  In some cases,
values were set in hex but reported in decimal.  Confusing.

Signed-off-by: Brian Cavagnolo <brian@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/libertas/persistcfg.c b/drivers/net/wireless/libertas/persistcfg.c
index 6d0ff8decaf7ef50e3175f26a50b888a8169f147..3309a9c3cfef3f66c84f5f1cb67388dda176c5e6 100644 (file)
--- a/drivers/net/wireless/libertas/persistcfg.c
+++ b/drivers/net/wireless/libertas/persistcfg.c
@@ -48,7 +48,7 @@ static ssize_t bootflag_get(struct device *dev,
        if (ret)
                return ret;
 
-       return snprintf(buf, 12, "0x%x\n", le32_to_cpu(defs.bootflag));
+       return snprintf(buf, 12, "%d\n", le32_to_cpu(defs.bootflag));
 }
 
 /**
@@ -63,8 +63,8 @@ static ssize_t bootflag_set(struct device *dev, struct device_attribute *attr,
        int ret;
 
        memset(&cmd, 0, sizeof(cmd));
-       ret = sscanf(buf, "%x", &datum);
-       if (ret != 1)
+       ret = sscanf(buf, "%d", &datum);
+       if ((ret != 1) || (datum > 1))
                return -EINVAL;
 
        *((__le32 *)&cmd.data[0]) = cpu_to_le32(!!datum);
@@ -91,7 +91,7 @@ static ssize_t boottime_get(struct device *dev,
        if (ret)
                return ret;
 
-       return snprintf(buf, 12, "0x%x\n", defs.boottime);
+       return snprintf(buf, 12, "%d\n", defs.boottime);
 }
 
 /**
@@ -106,8 +106,8 @@ static ssize_t boottime_set(struct device *dev,
        int ret;
 
        memset(&cmd, 0, sizeof(cmd));
-       ret = sscanf(buf, "%x", &datum);
-       if (ret != 1)
+       ret = sscanf(buf, "%d", &datum);
+       if ((ret != 1) || (datum > 255))
                return -EINVAL;
 
        /* A too small boot time will result in the device booting into
@@ -143,7 +143,7 @@ static ssize_t channel_get(struct device *dev,
        if (ret)
                return ret;
 
-       return snprintf(buf, 12, "0x%x\n", le16_to_cpu(defs.channel));
+       return snprintf(buf, 12, "%d\n", le16_to_cpu(defs.channel));
 }
 
 /**
@@ -154,11 +154,11 @@ static ssize_t channel_set(struct device *dev, struct device_attribute *attr,
 {
        struct lbs_private *priv = to_net_dev(dev)->priv;
        struct cmd_ds_mesh_config cmd;
-       uint16_t datum;
+       uint32_t datum;
        int ret;
 
        memset(&cmd, 0, sizeof(cmd));
-       ret = sscanf(buf, "%hx", &datum);
+       ret = sscanf(buf, "%d", &datum);
        if (ret != 1 || datum < 1 || datum > 11)
                return -EINVAL;
 
@@ -274,8 +274,8 @@ static ssize_t protocol_id_set(struct device *dev,
        int ret;
 
        memset(&cmd, 0, sizeof(cmd));
-       ret = sscanf(buf, "%x", &datum);
-       if (ret != 1)
+       ret = sscanf(buf, "%d", &datum);
+       if ((ret != 1) || (datum > 255))
                return -EINVAL;
 
        /* fetch all other Information Element parameters */
@@ -328,8 +328,8 @@ static ssize_t metric_id_set(struct device *dev, struct device_attribute *attr,
        int ret;
 
        memset(&cmd, 0, sizeof(cmd));
-       ret = sscanf(buf, "%x", &datum);
-       if (ret != 1)
+       ret = sscanf(buf, "%d", &datum);
+       if ((ret != 1) || (datum > 255))
                return -EINVAL;
 
        /* fetch all other Information Element parameters */
@@ -382,8 +382,8 @@ static ssize_t capability_set(struct device *dev, struct device_attribute *attr,
        int ret;
 
        memset(&cmd, 0, sizeof(cmd));
-       ret = sscanf(buf, "%x", &datum);
-       if (ret != 1)
+       ret = sscanf(buf, "%d", &datum);
+       if ((ret != 1) || (datum > 255))
                return -EINVAL;
 
        /* fetch all other Information Element parameters */