diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2006-06-13 23:47:19 +0100 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-06-26 22:01:53 -0400 |
| commit | b4ed03ff12e4bf228aaf15b2a364134348ebe8a9 (patch) | |
| tree | c7b678d6be2e316064aa505fed0352f994454d89 | |
| parent | eb99adde31b7d85c67a5e1c2fa5e098e1056dd79 (diff) | |
| download | op-kernel-dev-b4ed03ff12e4bf228aaf15b2a364134348ebe8a9.zip op-kernel-dev-b4ed03ff12e4bf228aaf15b2a364134348ebe8a9.tar.gz | |
[PATCH] DM9000 - better checks for platform resources
The current DM9000 driver cannot cope if it
is given more than 3 resources (for example, if
it is being passed an wake-up irq that it is
not using yet).
Check that we have been given at-least one IRQ
resource.
Also fix the minor type-casting for the case
of 2 resources.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/net/dm9000.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c index 24996da..631e0d9 100644 --- a/drivers/net/dm9000.c +++ b/drivers/net/dm9000.c @@ -410,10 +410,7 @@ dm9000_probe(struct platform_device *pdev) if (pdev->num_resources < 2) { ret = -ENODEV; goto out; - } - - switch (pdev->num_resources) { - case 2: + } else if (pdev->num_resources == 2) { base = pdev->resource[0].start; if (!request_mem_region(base, 4, ndev->name)) { @@ -423,17 +420,16 @@ dm9000_probe(struct platform_device *pdev) ndev->base_addr = base; ndev->irq = pdev->resource[1].start; - db->io_addr = (void *)base; - db->io_data = (void *)(base + 4); - - break; + db->io_addr = (void __iomem *)base; + db->io_data = (void __iomem *)(base + 4); - case 3: + } else { db->addr_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); db->data_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); db->irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (db->addr_res == NULL || db->data_res == NULL) { + if (db->addr_res == NULL || db->data_res == NULL || + db->irq_res == NULL) { printk(KERN_ERR PFX "insufficient resources\n"); ret = -ENOENT; goto out; @@ -482,7 +478,6 @@ dm9000_probe(struct platform_device *pdev) /* ensure at least we have a default set of IO routines */ dm9000_set_io(db, iosize); - } /* check to see if anything is being over-ridden */ |
