[PATCH 4.14 144/189] ixgbe: return error on unsupported SFP module when resetting

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Emil Tantilov <emil.s.tanti...@intel.com>

[ Upstream commit bbb2707623f3ccc48695da2433f06d7c38193451 ]

Add check for unsupported module and return the error code.
This fixes a Coverity hit due to unused return status from setup_sfp.

Signed-off-by: Emil Tantilov <emil.s.tanti...@intel.com>
Tested-by: Andrew Bowers <andrewx.bow...@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
@@ -3413,6 +3413,9 @@ static s32 ixgbe_reset_hw_X550em(struct
                hw->phy.sfp_setup_needed = false;
        }
 
+       if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
+               return status;
+
        /* Reset PHY */
        if (!hw->phy.reset_disable && hw->phy.ops.reset)
                hw->phy.ops.reset(hw);