netxen_nic: Fix an error handling path in 'netxen_nic_probe()'

[ Upstream commit 49a10c7b ]

If an error occurs after a 'pci_enable_pcie_error_reporting()' call, it
must be undone by a corresponding 'pci_disable_pcie_error_reporting()'
call, as already done in the remove function.

Fixes: e87ad553 ("netxen: support pci error handlers")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I5a37bd2bda55bb130f34ef4d25e15cc949e64623