From: "Cyrill V. Gorcunov" This patch adds checking for allocated DVMA memory and granted IRQ line. Signed-off-by: Cyrill V. Gorcunov Signed-off-by: Andrew Morton --- drivers/net/sun3lance.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff -puN drivers/net/sun3lance.c~sun3-3x-lance-trivial-fix-improved drivers/net/sun3lance.c --- a/drivers/net/sun3lance.c~sun3-3x-lance-trivial-fix-improved +++ a/drivers/net/sun3lance.c @@ -336,13 +336,27 @@ static int __init lance_probe( struct ne /* XXX - leak? */ MEM = dvma_malloc_align(sizeof(struct lance_memory), 0x10000); + if (MEM == NULL) { +#ifdef CONFIG_SUN3 + iounmap((void __iomem *)ioaddr); +#endif + 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 */ 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) { +#ifdef CONFIG_SUN3 + iounmap((void __iomem *)ioaddr); +#endif + dvma_free((void *)MEM); + printk(KERN_WARNING "SUN3 Lance unable to allocate IRQ\n"); + return 0; + } dev->irq = (unsigned short)LANCE_IRQ; _