niu: fix missing checks of niu_pci_eeprom_read
authorKangjie Lu <kjlu@umn.edu>
Tue, 25 Dec 2018 07:56:14 +0000 (01:56 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 12 Feb 2019 19:02:29 +0000 (20:02 +0100)
commit6e61830a8a7db5cd61d05cc0803333f452f8833a
treeea9789498151b3140f39f4b9761b3c355ce97309
parentc5b6f9d5f83472e53f5dc34ac7db96dc81fb4065
niu: fix missing checks of niu_pci_eeprom_read

[ Upstream commit 26fd962bde0b15e54234fe762d86bc0349df1de4 ]

niu_pci_eeprom_read() may fail, so we should check its return value
before using the read data.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Acked-by: Shannon Nelson <shannon.lee.nelson@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/sun/niu.c