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authorCyrill V. Gorcunov <gorcunov@gmail.com>2007-03-26 21:47:26 -0800
committerJeff Garzik <jeff@garzik.org>2007-03-28 02:18:51 -0400
commitc14bac628b9fad6fd4dad8fbb9e864c61a8924c9 (patch)
tree9f0dbaa87f077fbbf250414db91a1fb4fc66dfa2 /drivers/net/sun3lance.c
parentfadac4060c0456ce0a190ee581746ae8663f84e1 (diff)
downloadop-kernel-dev-c14bac628b9fad6fd4dad8fbb9e864c61a8924c9.zip
op-kernel-dev-c14bac628b9fad6fd4dad8fbb9e864c61a8924c9.tar.gz
SUN3/3X Lance trivial fix improved
This patch adds checking for allocated DVMA memory and granted IRQ line. Signed-off-by: Cyrill V. Gorcunov <gorcunov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/sun3lance.c')
-rw-r--r--drivers/net/sun3lance.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/net/sun3lance.c b/drivers/net/sun3lance.c
index c62e85d..7bee45b 100644
--- a/drivers/net/sun3lance.c
+++ b/drivers/net/sun3lance.c
@@ -336,13 +336,27 @@ static int __init lance_probe( struct net_device *dev)
/* 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;
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