ixgbe: Fix an error handling path in ixgbe_read_iosf_sb_reg_x550()

All error handling paths, except this one, go to 'out' where
release_swfw_sync() is called.
This call balances the acquire_swfw_sync() call done at the beginning of
the function.

Branch to the error handling path in order to correctly release some
resources in case of error.

Fixes: ae14a1d8e104 ("ixgbe: Fix IOSF SB access issues")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
index 6208923e29a2b861363317b983b577b383bbeeb1..c1adc94a5a657a6ac432a52016436479020673f3 100644 (file)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
@@ -716,7 +716,8 @@ static s32 ixgbe_read_iosf_sb_reg_x550(struct ixgbe_hw *hw, u32 reg_addr,
        if ((command & IXGBE_SB_IOSF_CTRL_RESP_STAT_MASK) != 0) {
                error = FIELD_GET(IXGBE_SB_IOSF_CTRL_CMPL_ERR_MASK, command);
                hw_dbg(hw, "Failed to read, error %x\n", error);
-               return -EIO;
+               ret = -EIO;
+               goto out;
        }
 
        if (!ret)