On Mon, 8 May 2017, David Laight wrote:
> From: Christophe JAILLET > > Sent: 06 May 2017 06:30 > > If 'devm_kzalloc' fails, a NULL pointer will be dereferenced. > > Return -ENOMEM instead, as done for some other memory allocation just a > > few lines above. > ... > > --- a/drivers/net/dsa/dsa_loop.c > > +++ b/drivers/net/dsa/dsa_loop.c > > @@ -256,6 +256,9 @@ static int dsa_loop_drv_probe(struct mdio_device > > *mdiodev) > > return -ENOMEM; > > > > ps = devm_kzalloc(&mdiodev->dev, sizeof(*ps), GFP_KERNEL); > > + if (!ps) > > + return -ENOMEM; > > + > > ps->netdev = dev_get_by_name(&init_net, pdata->netdev); > > if (!ps->netdev) > > return -EPROBE_DEFER; > > On the face if it this code leaks like a sieve. I don't think so. The allocations (dsa_switch_alloc and devm_kzalloc) use devm functions. julia
