[PATCH 4.9 13/29] net/mlx5e: Fix wrong return value on ioctl EEPROM query failure

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

From: Gal Pressman <gal@nvidia.com>

commit 0b89429722353d112f8b8b29ca397e95fa994d27 upstream.

The ioctl EEPROM query wrongly returns success on read failures, fix
that by returning the appropriate error code.

Fixes: bb64143eee8c ("net/mlx5e: Add ethtool support for dump module EEPROM")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1405,7 +1405,7 @@ static int mlx5e_get_module_eeprom(struc
 		if (size_read < 0) {
 			netdev_err(priv->netdev, "%s: mlx5_query_eeprom failed:0x%x\n",
 				   __func__, size_read);
-			return 0;
+			return size_read;
 		}
 
 		i += size_read;