diff options
| author | Kangjie Lu <kjlu@umn.edu> | 2018-12-21 09:22:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-13 12:01:01 +0300 |
| commit | 29b7def0ffb1c9acc043a5ca4b9fb212c2d0687d (patch) | |
| tree | 5052f3650f50986a27fbf5ae21e53c86f34db3ae /drivers/net/ethernet/qlogic | |
| parent | dd707bdce260c0b9adf99e9a3a77a21ca3ead2eb (diff) | |
| download | linux-29b7def0ffb1c9acc043a5ca4b9fb212c2d0687d.tar.xz | |
net: netxen: fix a missing check and an uninitialized use
[ Upstream commit d134e486e831defd26130770181f01dfc6195f7d ]
When netxen_rom_fast_read() fails, "bios" is left uninitialized and may
contain random value, thus should not be used.
The fix ensures that if netxen_rom_fast_read() fails, we return "-EIO".
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/qlogic')
| -rw-r--r-- | drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c index 3dd973475125..4b444351ab7d 100644 --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c @@ -1125,7 +1125,8 @@ netxen_validate_firmware(struct netxen_adapter *adapter) return -EINVAL; } val = nx_get_bios_version(adapter); - netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios); + if (netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios)) + return -EIO; if ((__force u32)val != bios) { dev_err(&pdev->dev, "%s: firmware bios is incompatible\n", fw_name[fw_type]); |