netxen: fix error handling in netxen_get_flash_block()

My static checker complained that "v" can be used unintialized if
netxen_rom_fast_read() returns -EIO.  That function never actually
returns -1.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
index db80eb1..a320541 100644 (file)
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
@@ -1015,20 +1015,24 @@ static int netxen_get_flash_block(struct netxen_adapter *adapter, int base,
 {
        int i, v, addr;
        __le32 *ptr32;
+       int ret;
 
        addr = base;
        ptr32 = buf;
        for (i = 0; i < size / sizeof(u32); i++) {
-               if (netxen_rom_fast_read(adapter, addr, &v) == -1)
-                       return -1;
+               ret = netxen_rom_fast_read(adapter, addr, &v);
+               if (ret)
+                       return ret;
+
                *ptr32 = cpu_to_le32(v);
                ptr32++;
                addr += sizeof(u32);
        }
        if ((char *)buf + size > (char *)ptr32) {
                __le32 local;
-               if (netxen_rom_fast_read(adapter, addr, &v) == -1)
-                       return -1;
+               ret = netxen_rom_fast_read(adapter, addr, &v);
+               if (ret)
+                       return ret;
                local = cpu_to_le32(v);
                memcpy(ptr32, &local, (char *)buf + size - (char *)ptr32);
        }