powerpc: Fix a number of sparse warnings
Address some of the trivial sparse warnings in arch/powerpc.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 0733b05..af1c63f 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -99,7 +99,7 @@
legacy_serial_count = index + 1;
/* Check if there is a port who already claimed our slot */
- if (legacy_serial_infos[index].np != 0) {
+ if (legacy_serial_infos[index].np != NULL) {
/* if we still have some room, move it, else override */
if (legacy_serial_count < MAX_LEGACY_SERIAL_PORTS) {
printk(KERN_DEBUG "Moved legacy port %d -> %d\n",
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 7d22a67..22fe401 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -306,7 +306,7 @@
unsigned long io_offset = 0;
int i, res_bit;
- if (hose == 0)
+ if (hose == NULL)
return NULL; /* should never happen */
/* If memory, add on the PCI bridge address offset */
@@ -1578,7 +1578,7 @@
{
static struct pci_bus bus;
- if (hose == 0) {
+ if (hose == NULL) {
printk(KERN_ERR "Can't find hose for PCI bus %d!\n", busnr);
}
bus.number = busnr;
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 2e86296..cdf5aa1 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -109,7 +109,7 @@
hose = pci_bus_to_host(bus);
/* Check if we have IOs allocated */
- if (hose->io_base_alloc == 0)
+ if (hose->io_base_alloc == NULL)
return 0;
pr_debug("IO unmapping for PHB %s\n", hose->dn->full_name);
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index f03770e..79ba9b7 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -325,7 +325,7 @@
NULL);
if (lsizep != NULL)
lsize = *lsizep;
- if (sizep == 0 || lsizep == 0)
+ if (sizep == NULL || lsizep == NULL)
DBG("Argh, can't find dcache properties ! "
"sizep: %p, lsizep: %p\n", sizep, lsizep);
@@ -347,7 +347,7 @@
NULL);
if (lsizep != NULL)
lsize = *lsizep;
- if (sizep == 0 || lsizep == 0)
+ if (sizep == NULL || lsizep == NULL)
DBG("Argh, can't find icache properties ! "
"sizep: %p, lsizep: %p\n", sizep, lsizep);
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 887e99d..cbd2692 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -346,13 +346,13 @@
if (v_regs && !access_ok(VERIFY_READ, v_regs, 34 * sizeof(vector128)))
return -EFAULT;
/* Copy 33 vec registers (vr0..31 and vscr) from the stack */
- if (v_regs != 0 && (msr & MSR_VEC) != 0)
+ if (v_regs != NULL && (msr & MSR_VEC) != 0)
err |= __copy_from_user(current->thread.vr, v_regs,
33 * sizeof(vector128));
else if (current->thread.used_vr)
memset(current->thread.vr, 0, 33 * sizeof(vector128));
/* Always get VRSAVE back */
- if (v_regs != 0)
+ if (v_regs != NULL)
err |= __get_user(current->thread.vrsave, (u32 __user *)&v_regs[33]);
else
current->thread.vrsave = 0;
@@ -463,7 +463,7 @@
tm_v_regs, 34 * sizeof(vector128)))
return -EFAULT;
/* Copy 33 vec registers (vr0..31 and vscr) from the stack */
- if (v_regs != 0 && tm_v_regs != 0 && (msr & MSR_VEC) != 0) {
+ if (v_regs != NULL && tm_v_regs != NULL && (msr & MSR_VEC) != 0) {
err |= __copy_from_user(current->thread.vr, v_regs,
33 * sizeof(vector128));
err |= __copy_from_user(current->thread.transact_vr, tm_v_regs,
@@ -474,7 +474,7 @@
memset(current->thread.transact_vr, 0, 33 * sizeof(vector128));
}
/* Always get VRSAVE back */
- if (v_regs != 0 && tm_v_regs != 0) {
+ if (v_regs != NULL && tm_v_regs != NULL) {
err |= __get_user(current->thread.vrsave,
(u32 __user *)&v_regs[33]);
err |= __get_user(current->thread.transact_vrsave,
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 38b0ba6..98822400 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -172,7 +172,7 @@
#endif
err = request_irq(virq, smp_ipi_action[msg],
IRQF_PERCPU | IRQF_NO_THREAD | IRQF_NO_SUSPEND,
- smp_ipi_name[msg], 0);
+ smp_ipi_name[msg], NULL);
WARN(err < 0, "unable to request_irq %d for %s (rc %d)\n",
virq, smp_ipi_name[msg], err);