UPSTREAM: igc: Fix infinite loop in release_swfw_sync

[ Upstream commit 907862e9 ]

An infinite loop may occur if we fail to acquire the HW semaphore,
which is needed for resource release.
This will typically happen if the hardware is surprise-removed.
At this stage there is nothing to do, except log an error and quit.

Fixes: c0071c7a ("igc: Add HW initialization code")
Suggested-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit f9d5d17d)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0d06870fa568a796da2ee4610d71f5ad67768354