1 files changed, 46 insertions, 0 deletions

diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index 893a55ca344a..8a7e9319c9e5 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -117,6 +117,11 @@ static ssize_t lbs_sleepparams_write(struct file *file,
         if (!buf)
                 return -ENOMEM;
 
+        if (!lbs_is_cmd_allowed(priv)) {
+                ret = -EBUSY;
+                goto out_unlock;
+        }
+
         buf_size = min(count, len - 1);
         if (copy_from_user(buf, user_buf, buf_size)) {
                 ret = -EFAULT;
@@ -157,6 +162,11 @@ static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf,
         if (!buf)
                 return -ENOMEM;
 
+        if (!lbs_is_cmd_allowed(priv)) {
+                ret = -EBUSY;
+                goto out_unlock;
+        }
+
         ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp);
         if (ret)
                 goto out_unlock;
@@ -223,6 +233,9 @@ static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
         u8 freq;
         int events = 0;
 
+        if (!lbs_is_cmd_allowed(priv))
+                return -EBUSY;
+
         buf = (char *)get_zeroed_page(GFP_KERNEL);
         if (!buf)
                 return -ENOMEM;
@@ -275,6 +288,9 @@ static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
         char *buf;
         int ret;
 
+        if (!lbs_is_cmd_allowed(priv))
+                return -EBUSY;
+
         buf = (char *)get_zeroed_page(GFP_KERNEL);
         if (!buf)
                 return -ENOMEM;
@@ -444,6 +460,11 @@ static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
         if (!buf)
                 return -ENOMEM;
 
+        if (!lbs_is_cmd_allowed(priv)) {
+                free_page(addr);
+                return -EBUSY;
+        }
+
         offval.offset = priv->mac_offset;
         offval.value = 0;
 
@@ -496,6 +517,11 @@ static ssize_t lbs_wrmac_write(struct file *file,
         if (!buf)
                 return -ENOMEM;
 
+        if (!lbs_is_cmd_allowed(priv)) {
+                res = -EBUSY;
+                goto out_unlock;
+        }
+
         buf_size = min(count, len - 1);
         if (copy_from_user(buf, userbuf, buf_size)) {
                 res = -EFAULT;
@@ -532,6 +558,11 @@ static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
         if (!buf)
                 return -ENOMEM;
 
+        if (!lbs_is_cmd_allowed(priv)) {
+                free_page(addr);
+                return -EBUSY;
+        }
+
         offval.offset = priv->bbp_offset;
         offval.value = 0;
 
@@ -585,6 +616,11 @@ static ssize_t lbs_wrbbp_write(struct file *file,
         if (!buf)
                 return -ENOMEM;
 
+        if (!lbs_is_cmd_allowed(priv)) {
+                res = -EBUSY;
+                goto out_unlock;
+        }
+
         buf_size = min(count, len - 1);
         if (copy_from_user(buf, userbuf, buf_size)) {
                 res = -EFAULT;
@@ -621,6 +657,11 @@ static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
         if (!buf)
                 return -ENOMEM;
 
+        if (!lbs_is_cmd_allowed(priv)) {
+                free_page(addr);
+                return -EBUSY;
+        }
+
         offval.offset = priv->rf_offset;
         offval.value = 0;
 
@@ -674,6 +715,11 @@ static ssize_t lbs_wrrf_write(struct file *file,
         if (!buf)
                 return -ENOMEM;
 
+        if (!lbs_is_cmd_allowed(priv)) {
+                res = -EBUSY;
+                goto out_unlock;
+        }
+
         buf_size = min(count, len - 1);
         if (copy_from_user(buf, userbuf, buf_size)) {
                 res = -EFAULT;