[PATCH] WAN: ioremap() failure checks in drivers
Eric Sesterhenn found that pci200syn initialization lacks return
statement in ioremap() error path (coverity bug id #195). It looks
like more WAN drivers have problems with ioremap().
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c
index 29a756d..437e0e9 100644
--- a/drivers/net/wan/wanxl.c
+++ b/drivers/net/wan/wanxl.c
@@ -634,7 +634,13 @@
/* set up PLX mapping */
plx_phy = pci_resource_start(pdev, 0);
+
card->plx = ioremap_nocache(plx_phy, 0x70);
+ if (!card->plx) {
+ printk(KERN_ERR "wanxl: ioremap() failed\n");
+ wanxl_pci_remove_one(pdev);
+ return -EFAULT;
+ }
#if RESET_WHILE_LOADING
wanxl_reset(card);
@@ -700,6 +706,12 @@
}
mem = ioremap_nocache(mem_phy, PDM_OFFSET + sizeof(firmware));
+ if (!mem) {
+ printk(KERN_ERR "wanxl: ioremap() failed\n");
+ wanxl_pci_remove_one(pdev);
+ return -EFAULT;
+ }
+
for (i = 0; i < sizeof(firmware); i += 4)
writel(htonl(*(u32*)(firmware + i)), mem + PDM_OFFSET + i);