1 files changed, 18 insertions, 9 deletions

diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index 893a55ca344..587b0cb0088 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -451,10 +451,12 @@ static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
                                 CMD_MAC_REG_ACCESS, 0,
                                 CMD_OPTION_WAITFORRSP, 0, &offval);
         mdelay(10);
-        pos += snprintf(buf+pos, len-pos, "MAC[0x%x] = 0x%08x\n",
+        if (!ret) {
+                pos += snprintf(buf+pos, len-pos, "MAC[0x%x] = 0x%08x\n",
                                 priv->mac_offset, priv->offsetvalue.value);
 
-        ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+                ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        }
         free_page(addr);
         return ret;
 }
@@ -514,7 +516,8 @@ static ssize_t lbs_wrmac_write(struct file *file,
                                 CMD_OPTION_WAITFORRSP, 0, &offval);
         mdelay(10);
 
-        res = count;
+        if (!res)
+                res = count;
 out_unlock:
         free_page(addr);
         return res;
@@ -539,10 +542,12 @@ static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
                                 CMD_BBP_REG_ACCESS, 0,
                                 CMD_OPTION_WAITFORRSP, 0, &offval);
         mdelay(10);
-        pos += snprintf(buf+pos, len-pos, "BBP[0x%x] = 0x%08x\n",
+        if (!ret) {
+                pos += snprintf(buf+pos, len-pos, "BBP[0x%x] = 0x%08x\n",
                                 priv->bbp_offset, priv->offsetvalue.value);
 
-        ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+                ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        }
         free_page(addr);
 
         return ret;
@@ -603,7 +608,8 @@ static ssize_t lbs_wrbbp_write(struct file *file,
                                 CMD_OPTION_WAITFORRSP, 0, &offval);
         mdelay(10);
 
-        res = count;
+        if (!res)
+                res = count;
 out_unlock:
         free_page(addr);
         return res;
@@ -628,10 +634,12 @@ static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
                                 CMD_RF_REG_ACCESS, 0,
                                 CMD_OPTION_WAITFORRSP, 0, &offval);
         mdelay(10);
-        pos += snprintf(buf+pos, len-pos, "RF[0x%x] = 0x%08x\n",
+        if (!ret) {
+                pos += snprintf(buf+pos, len-pos, "RF[0x%x] = 0x%08x\n",
                                 priv->rf_offset, priv->offsetvalue.value);
 
-        ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+                ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+        }
         free_page(addr);
 
         return ret;
@@ -692,7 +700,8 @@ static ssize_t lbs_wrrf_write(struct file *file,
                                 CMD_OPTION_WAITFORRSP, 0, &offval);
         mdelay(10);
 
-        res = count;
+        if (!res)
+                res = count;
 out_unlock:
         free_page(addr);
         return res;