Merge tag 'mac80211-next-for-davem-2015-12-07' into next

This pull request got a bit bigger than I wanted, due to
needing to reshuffle and fix some bugs. I merged mac80211
to get the right base for some of these changes.

 * new mac80211 API for upcoming driver changes: EOSP handling,
   key iteration
 * scan abort changes allowing to cancel an ongoing scan
 * VHT IBSS 80+80 MHz support
 * re-enable full AP client state tracking after fixes
 * various small fixes (that weren't relevant for mac80211)
 * various cleanups

1 files changed, 10 insertions, 14 deletions

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index d4b7af9a2fc8..d1a91c8178d6 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -103,8 +103,8 @@ static ssize_t i40e_dbg_dump_read(struct file *filp, char __user *buffer,
 	len = min_t(int, count, (i40e_dbg_dump_data_len - *ppos));
 
 	bytes_not_copied = copy_to_user(buffer, &i40e_dbg_dump_buf[*ppos], len);
-	if (bytes_not_copied < 0)
-		return bytes_not_copied;
+	if (bytes_not_copied)
+		return -EFAULT;
 
 	*ppos += len;
 	return len;
@@ -353,8 +353,8 @@ static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
 	bytes_not_copied = copy_to_user(buffer, buf, len);
 	kfree(buf);
 
-	if (bytes_not_copied < 0)
-		return bytes_not_copied;
+	if (bytes_not_copied)
+		return -EFAULT;
 
 	*ppos = len;
 	return len;
@@ -981,12 +981,10 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 	if (!cmd_buf)
 		return count;
 	bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
-	if (bytes_not_copied < 0) {
+	if (bytes_not_copied) {
 		kfree(cmd_buf);
-		return bytes_not_copied;
+		return -EFAULT;
 	}
-	if (bytes_not_copied > 0)
-		count -= bytes_not_copied;
 	cmd_buf[count] = '\0';
 
 	cmd_buf_tmp = strchr(cmd_buf, '\n');
@@ -2034,8 +2032,8 @@ static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
 	bytes_not_copied = copy_to_user(buffer, buf, len);
 	kfree(buf);
 
-	if (bytes_not_copied < 0)
-		return bytes_not_copied;
+	if (bytes_not_copied)
+		return -EFAULT;
 
 	*ppos = len;
 	return len;
@@ -2068,10 +2066,8 @@ static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
 	memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
 	bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
 					  buffer, count);
-	if (bytes_not_copied < 0)
-		return bytes_not_copied;
-	else if (bytes_not_copied > 0)
-		count -= bytes_not_copied;
+	if (bytes_not_copied)
+		return -EFAULT;
 	i40e_dbg_netdev_ops_buf[count] = '\0';
 
 	buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');