Commit 313ed2d5 authored Aug 27, 2015 by Mitch Williams Committed by Jeff Kirsher Oct 07, 2015

i40evf: propagate interrupt allocation failure



Lower level functions are properly reporting errors, and higher-level
functions are correctly responding to errors, but the errors aren't
actually getting through. Typically, the middle-manager function seems
to want to shield its boss from any bad news.

This change fixes a panic if the driver is unable to enable MSI-X or is
unable to acquire enough vectors.

Change-ID: Ifd5787ce92519a5d97e4b465902db930d97b71a1
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

parent 2642f025

drivers/net/ethernet/intel/i40evf/i40evf_main.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1163,7 +1163,7 @@ static int i40evf_set_interrupt_capability(struct i40evf_adapter *adapter)
		for (vector = 0; vector < v_budget; vector++)
		adapter->msix_entries[vector].entry = vector;

		i40evf_acquire_msix_vectors(adapter, v_budget);
		err = i40evf_acquire_msix_vectors(adapter, v_budget);

		out:
		adapter->netdev->real_num_tx_queues = pairs;