| Message ID | 20170721183627.13373-1-bpoirier@suse.com |
|---|---|
| State | Accepted |
| Delegated to: | Jeff Kirsher |
| Headers | show |
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@osuosl.org] On Behalf > Of Benjamin Poirier > Sent: Friday, July 21, 2017 11:36 AM > To: Kirsher, Jeffrey T <jeffrey.t.kirsher@intel.com> > Cc: netdev@vger.kernel.org; intel-wired-lan@lists.osuosl.org; linux- > kernel@vger.kernel.org; Lennart Sorensen <lsorense@csclub.uwaterloo.ca> > Subject: [Intel-wired-lan] [PATCH 1/5] e1000e: Fix error path in link detection > > In case of error from e1e_rphy(), the loop will exit early and "success" > will be set to true erroneously. > > Signed-off-by: Benjamin Poirier <bpoirier@suse.com> > --- > drivers/net/ethernet/intel/e1000e/phy.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > Tested-by: Aaron Brown <aaron.f.brown@intel.com>
diff --git a/drivers/net/ethernet/intel/e1000e/phy.c b/drivers/net/ethernet/intel/e1000e/phy.c index d78d47b41a71..86ff0969efb6 100644 --- a/drivers/net/ethernet/intel/e1000e/phy.c +++ b/drivers/net/ethernet/intel/e1000e/phy.c @@ -1744,6 +1744,7 @@ s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations, s32 ret_val = 0; u16 i, phy_status; + *success = false; for (i = 0; i < iterations; i++) { /* Some PHYs require the MII_BMSR register to be read * twice due to the link bit being sticky. No harm doing @@ -1763,16 +1764,16 @@ s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations, ret_val = e1e_rphy(hw, MII_BMSR, &phy_status); if (ret_val) break; - if (phy_status & BMSR_LSTATUS) + if (phy_status & BMSR_LSTATUS) { + *success = true; break; + } if (usec_interval >= 1000) msleep(usec_interval / 1000); else udelay(usec_interval); } - *success = (i < iterations); - return ret_val; }
In case of error from e1e_rphy(), the loop will exit early and "success" will be set to true erroneously. Signed-off-by: Benjamin Poirier <bpoirier@suse.com> --- drivers/net/ethernet/intel/e1000e/phy.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)