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 <[EMAIL PROTECTED]>
--- a/drivers/net/wan/c101.c
+++ b/drivers/net/wan/c101.c
@@ -326,21 +326,21 @@ static int __init c101_run(unsigned long
if (request_irq(irq, sca_intr, 0, devname, card)) {
printk(KERN_ERR "c101: could not allocate IRQ\n");
c101_destroy_card(card);
- return(-EBUSY);
+ return -EBUSY;
}
card->irq = irq;
if (!request_mem_region(winbase, C101_MAPPED_RAM_SIZE, devname)) {
printk(KERN_ERR "c101: could not request RAM window\n");
c101_destroy_card(card);
- return(-EBUSY);
+ return -EBUSY;
}
card->phy_winbase = winbase;
card->win0base = ioremap(winbase, C101_MAPPED_RAM_SIZE);
if (!card->win0base) {
printk(KERN_ERR "c101: could not map I/O address\n");
c101_destroy_card(card);
- return -EBUSY;
+ return -EFAULT;
}
card->tx_ring_buffers = TX_RING_BUFFERS;
--- a/drivers/net/wan/n2.c
+++ b/drivers/net/wan/n2.c
@@ -387,6 +387,11 @@ static int __init n2_run(unsigned long i
}
card->phy_winbase = winbase;
card->winbase = ioremap(winbase, USE_WINDOWSIZE);
+ if (!card->winbase) {
+ printk(KERN_ERR "n2: ioremap() failed\n");
+ n2_destroy_card(card);
+ return -EFAULT;
+ }
outb(0, io + N2_PCR);
outb(winbase >> 12, io + N2_BAR);
--- a/drivers/net/wan/pci200syn.c
+++ b/drivers/net/wan/pci200syn.c
@@ -358,6 +358,7 @@ #endif
card->rambase == NULL) {
printk(KERN_ERR "pci200syn: ioremap() failed\n");
pci200_pci_remove_one(pdev);
+ return -EFAULT;
}
/* Reset PLX */
--- a/drivers/net/wan/wanxl.c
+++ b/drivers/net/wan/wanxl.c
@@ -634,7 +634,13 @@ #endif
/* 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 @@ #endif
}
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);
-
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