igc: change default return of igc_read_phy_reg()

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Static analysis reports this problem

igc_main.c:4944:20: warning: The left operand of '&'
  is a garbage value
    if (!(phy_data & SR_1000T_REMOTE_RX_STATUS) &&
          ~~~~~~~~ ^

phy_data is set by the call to igc_read_phy_reg() only if
there is a read_reg() op, else it is unset and a 0 is
returned.  Change the return to -EOPNOTSUPP.

Fixes: 208983f099 ("igc: Add watchdog")
Signed-off-by: Tom Rix <trix@redhat.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

...

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Tom Rix 2021-05-21 12:50:19 -07:00 • committed by Tony Nguyen

parent 7b292608db

commit 05682a0a61

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/intel/igc/igc.h

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