diff options
| author | Bruce Allan <bruce.w.allan@intel.com> | 2013-01-05 06:08:31 +0100 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-01-27 11:08:19 +0100 |
| commit | 7dbbe5d5a5073d590790007d5b98d7fd51fd2ff5 (patch) | |
| tree | 106a553cf5852a094a2fd73cb65e3153d9de334f /drivers/net/ethernet/intel/e1000e/82571.c | |
| parent | e1000e: cleanup: remove unnecessary function prototypes (diff) | |
| download | linux-7dbbe5d5a5073d590790007d5b98d7fd51fd2ff5.tar.xz linux-7dbbe5d5a5073d590790007d5b98d7fd51fd2ff5.zip | |
e1000e: do not ignore variables which get set a value
Static analysis with cppcheck has shown a few instances of a variable which
is assigned a value that is never used. A number of these are the return
status of various driver function calls which should be passed back to the
caller of the current function.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/82571.c')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/82571.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c index c2c23d26f440..d48143fefbfe 100644 --- a/drivers/net/ethernet/intel/e1000e/82571.c +++ b/drivers/net/ethernet/intel/e1000e/82571.c @@ -554,16 +554,14 @@ static s32 e1000_get_hw_semaphore_82573(struct e1000_hw *hw) s32 i = 0; extcnf_ctrl = er32(EXTCNF_CTRL); - extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; do { + extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; ew32(EXTCNF_CTRL, extcnf_ctrl); extcnf_ctrl = er32(EXTCNF_CTRL); if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP) break; - extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; - usleep_range(2000, 4000); i++; } while (i < MDIO_OWNERSHIP_TIMEOUT); @@ -935,6 +933,8 @@ static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active) /* When LPLU is enabled, we should disable SmartSpeed */ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data); + if (ret_val) + return ret_val; data &= ~IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); if (ret_val) @@ -1797,6 +1797,8 @@ static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw) if (ret_val) return ret_val; ret_val = e1000e_update_nvm_checksum(hw); + if (ret_val) + return ret_val; } } |