Re: [PATCH] SUN3/3X Lance trivial fix

[Jiri Slaby]

Jiri Slaby napsal(a):
> Cyrill V. Gorcunov napsal(a):
> > This patch adds checking for allocated DVMA
> > memory and granted IRQ line.
> >
> > Signed-off-by: Cyrill V. Gorcunov <gorcunov@xxxxxxxxx>
> >
> > ---
> >
> >  drivers/net/sun3lance.c |    9 ++++++++-
> >  1 files changed, 8 insertions(+), 1 deletions(-)
> >
> > diff --git a/drivers/net/sun3lance.c b/drivers/net/sun3lance.c
> > index c62e85d..e4c2c88 100644
> > --- a/drivers/net/sun3lance.c
> > +++ b/drivers/net/sun3lance.c
> > @@ -336,13 +336,20 @@ static int __init lance_probe( struct net_device 
> > *dev)
> >  
> >      /* XXX - leak? */
> >      MEM = dvma_malloc_align(sizeof(struct lance_memory), 0x10000);
> > +    if (MEM == NULL) {
> > +        printk(KERN_WARNING "SUN3 Lance couldn't allocate DVMA 
> > memory\n");
> > +        return 0;
> > +    }
> >  
> >      lp->iobase = (volatile unsigned short *)ioaddr;
> >      dev->base_addr = (unsigned long)ioaddr; /* informational only */
>
> But now, if it fails (and you return 0=OK state) these are not assigned 

Ok, 0 is not OK state, I see it now.

> and probably used later.
>
> >  
> >      REGA(CSR0) = CSR0_STOP;
> >  
> > -    request_irq(LANCE_IRQ, lance_interrupt, IRQF_DISABLED, "SUN3 
> > Lance", dev);
> > +    if (request_irq(LANCE_IRQ, lance_interrupt, IRQF_DISABLED, "SUN3 
> > Lance", dev) < 0) {
> > +        printk(KERN_WARNING "SUN3 Lance unable to allocate IRQ\n");

But in that case, you want to dvma_free() here?

> > +        return 0;
> > +    }
> >      dev->irq = (unsigned short)LANCE_IRQ;

regards,
--
http://www.fi.muni.cz/~xslaby/            Jiri Slaby
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8  22A0 32CC 55C3 39D4 7A7E
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