ixgbe: fix end of loop test in ixgbe_set_vf_macvlan()

The list iterator in a list_for_each_entry() loop can never be NULL.
If the loop exits without hitting a break then the iterator points
to an offset off the list head and dereferencing it is an out of
bounds access.

Before we transitioned to using list_for_each_entry() loops, then
it was possible for "entry" to be NULL and the comments mention
this.  I have updated the comments to match the new code.

Fixes: c1fec890458a ("ethernet/intel: Use list_for_each_entry() helper")
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Reviewed-by: Jesse Brandeburg <[email protected]>
Tested-by: Rafal Romanowski <[email protected]>
Signed-off-by: Jacob Keller <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

0 files changed, 0 insertions, 0 deletions