patchset against 2.6.23-rc2 and this set is an audit of
/drivers/char/a*
through drivers/char .
this corrects missing ioremap return checks and balancing on
iounmap calls..
Signed-off-by: Scott Thompson <postfail <at> hushmail.com>
----------------------------------------------------------
diff --git a/drivers/char/rio/rio_linux.c
b/drivers/char/rio/rio_linux.c
index 0ce9667..fdaf44f 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -924,6 +924,11 @@ static void fix_rio_pci(struct pci_dev *pdev)
hwbase = pci_resource_start(pdev, 0);
rebase = ioremap(hwbase, 0x80);
+ if (!rebase) {
+ printk(KERN_DEBUG "rio: unable to perform cntrl reg fix as
ioremap call failed\n");
+ return;
+ }
+
t = readl(rebase + CNTRL_REG_OFFSET);
if (t != CNTRL_REG_GOODVALUE) {
printk(KERN_DEBUG "rio: performing cntrl reg fix: %08x ->
%08x\n", t, CNTRL_REG_GOODVALUE);
@@ -996,6 +1001,11 @@ static int __init rio_init(void)
if (((1 << hp->Ivec) & rio_irqmask) == 0)
hp->Ivec = 0;
hp->Caddr = ioremap(p->RIOHosts[p->RIONumHosts].PaddrP,
RIO_WINDOW_LEN);
+ if (!hp->Caddr) {
+ printk(KERN_ERR "RIO: Unable to ioremap.\n");
+ return -ENOMEM;
+ }
+
hp->CardP = (struct DpRam __iomem *) hp->Caddr;
hp->Type = RIO_PCI;
hp->Copy = rio_copy_to_card;
@@ -1049,6 +1059,10 @@ static int __init rio_init(void)
hp->Ivec = 0;
hp->Ivec |= 0x8000; /* Mark as non-sharable */
hp->Caddr = ioremap(p->RIOHosts[p->RIONumHosts].PaddrP,
RIO_WINDOW_LEN);
+ if (!hp->Caddr) {
+ printk(KERN_ERR "RIO: Unable to ioremap.\n");
+ return -ENOMEM;
+ }
hp->CardP = (struct DpRam __iomem *) hp->Caddr;
hp->Type = RIO_PCI;
hp->Copy = rio_copy_to_card;
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
