In two places, tmp is initialized implicitly by being passed as a
pointer during a function call.  However, this is not obvious to the
compiler, which logs a warning.
Signed-off-by: Simon Que <sque@chromium.org>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
        dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0xc : 0x4);
 
        for (i = 0; i < DM_TIMEOUT; i++) {
-               u8 tmp;
+               u8 tmp = 0;
 
                udelay(1);
                ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
        dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x1a : 0x12);
 
        for (i = 0; i < DM_TIMEOUT; i++) {
-               u8 tmp;
+               u8 tmp = 0;
 
                udelay(1);
                ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);