diff options
| author | Akeem G. Abodunrin <akeem.g.abodunrin@intel.com> | 2013-05-02 02:57:44 (GMT) |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-05-21 09:19:03 (GMT) |
| commit | 6c1d8b96d09ed8852f5bc11c42374be3232374ce (patch) | |
| tree | f9ebfcd1f4055f791992321a68fddc474ddfe96f /drivers/net | |
| parent | 603cdca9805e4f8001cf7ffbd8c539c9fa6674ce (diff) | |
| download | linux-fsl-qoriq-6c1d8b96d09ed8852f5bc11c42374be3232374ce.tar.xz | |
e1000e: Release mutex lock only if it has been initially acquired
This patch fixes the issue of unlocking swflag_mutex for 82574 and 82583
devices regardless of if the hw semaphore has been successfully acquired via
e1000_get_hw_semaphore_82574(). With this patch, unlocking mutex now depends
on if the hw semaphore was successfully acquired before. And 82574/82583
devices are reset regardless of whether e1000_get_hw_semaphore_82574()
returns success or failure.
Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@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')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/82571.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c index bef2f10..4c303e2 100644 --- a/drivers/net/ethernet/intel/e1000e/82571.c +++ b/drivers/net/ethernet/intel/e1000e/82571.c @@ -1003,8 +1003,6 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw) default: break; } - if (ret_val) - e_dbg("Cannot acquire MDIO ownership\n"); ctrl = er32(CTRL); @@ -1015,7 +1013,9 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw) switch (hw->mac.type) { case e1000_82574: case e1000_82583: - e1000_put_hw_semaphore_82574(hw); + /* Release mutex only if the hw semaphore is acquired */ + if (!ret_val) + e1000_put_hw_semaphore_82574(hw); break; default: break; |