Commit d134e486 authored by Kangjie Lu's avatar Kangjie Lu Committed by David S. Miller

net: netxen: fix a missing check and an uninitialized use

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: default avatarKangjie Lu <kjlu@umn.edu>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f0c928d8
......@@ -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]);
......
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