net/mlx4_en: Fix wrong return value on ioctl EEPROM query failure

Bugzilla: https://bugzilla.redhat.com/2112965
Upstream-status: v5.19-rc2

commit f5826c8
Author: Gal Pressman <gal@nvidia.com>
Date:   Mon Jun 6 14:57:18 2022 +0300

    net/mlx4_en: Fix wrong return value on ioctl EEPROM query failure

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

    Fixes: 7202da8 ("ethtool, net/mlx4_en: Cable info, get_module_info/eeprom ethtool support")
    Signed-off-by: Gal Pressman <gal@nvidia.com>
    Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
    Link: https://lore.kernel.org/r/20220606115718.14233-1-tariqt@nvidia.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Mohammad Kabat <mkabat@redhat.com>

Author: Mohammad Kabat

drivers/net/ethernet/mellanox/mlx4/en_ethtool.c

@@ -2110,7 +2110,7 @@ static int mlx4_en_get_module_eeprom(struct net_device *dev,
 			en_err(priv,
 			       "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
 			       i, offset, ee->len - i, ret);
-			return 0;
+			return ret;
 		}
 
 		i += ret;