• Arnd Bergmann's avatar
    mdio: mux: avoid 'maybe-uninitialized' warning · a78c16e1
    Arnd Bergmann authored
    The latest changes to the MDIO code introduced a false-positive
    warning with gcc-6 (possibly others):
    
    drivers/net/phy/mdio-mux.c: In function 'mdio_mux_init':
    drivers/net/phy/mdio-mux.c:188:3: error: 'parent_bus_node' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    
    It's easy to avoid the warning by making sure the parent_bus_node
    is initialized in both cases at the start of the function, since
    the later 'of_node_put()' call is also valid for a NULL pointer
    argument.
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    Fixes: f20e6657 ("mdio: mux: Enhanced MDIO mux framework for integrated multiplexers")
    Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    a78c16e1
mdio-mux.c 4.74 KB