[PATCH] i386/x86-64: Remove checks for value == NULL in PCI config space access
Nobody should pass NULL here. Could in theory make it a BUG,
but the NULL pointer oops will do as well.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/i386/pci/direct.c b/arch/i386/pci/direct.c
index 0659ced..5d81fb5 100644
--- a/arch/i386/pci/direct.c
+++ b/arch/i386/pci/direct.c
@@ -19,7 +19,7 @@
{
unsigned long flags;
- if (!value || (bus > 255) || (devfn > 255) || (reg > 255)) {
+ if ((bus > 255) || (devfn > 255) || (reg > 255)) {
*value = -1;
return -EINVAL;
}
@@ -94,8 +94,10 @@
unsigned long flags;
int dev, fn;
- if (!value || (bus > 255) || (devfn > 255) || (reg > 255))
+ if ((bus > 255) || (devfn > 255) || (reg > 255)) {
+ *value = -1;
return -EINVAL;
+ }
dev = PCI_SLOT(devfn);
fn = PCI_FUNC(devfn);
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index f77d7f8..6b1ea0c 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -80,7 +80,7 @@
unsigned long flags;
u32 base;
- if (!value || (bus > 255) || (devfn > 255) || (reg > 4095)) {
+ if ((bus > 255) || (devfn > 255) || (reg > 4095)) {
*value = -1;
return -EINVAL;
}
diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c
index b493ed9..1a59a31 100644
--- a/arch/x86_64/pci/mmconfig.c
+++ b/arch/x86_64/pci/mmconfig.c
@@ -75,7 +75,7 @@
char __iomem *addr;
/* Why do we have this when nobody checks it. How about a BUG()!? -AK */
- if (unlikely(!value || (bus > 255) || (devfn > 255) || (reg > 4095))) {
+ if (unlikely((bus > 255) || (devfn > 255) || (reg > 4095))) {
*value = -1;
return -EINVAL;
}