PNP: remove null pointer checks

Remove some null pointer checks.  Null pointers in these areas indicate
programming errors, and I think it's better to oops immediately rather
than return an error that is easily ignored.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Adam Belay <abelay@novell.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 0 insertions, 23 deletions

diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
index 329dc6c18384..0826287eef53 100644
--- a/drivers/pnp/manager.c
+++ b/drivers/pnp/manager.c
@@ -21,9 +21,6 @@ static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
         resource_size_t *start, *end;
         unsigned long *flags;
 
-        if (!dev || !rule)
-                return -EINVAL;
-
         if (idx >= PNP_MAX_PORT) {
                 pnp_err
                     ("More than 4 ports is incompatible with pnp specifications.");
@@ -66,9 +63,6 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
         resource_size_t *start, *end;
         unsigned long *flags;
 
-        if (!dev || !rule)
-                return -EINVAL;
-
         if (idx >= PNP_MAX_MEM) {
                 pnp_err
                     ("More than 8 mems is incompatible with pnp specifications.");
@@ -127,9 +121,6 @@ static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx)
                 5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2
         };
 
-        if (!dev || !rule)
-                return -EINVAL;
-
         if (idx >= PNP_MAX_IRQ) {
                 pnp_err
                     ("More than 2 irqs is incompatible with pnp specifications.");
@@ -181,9 +172,6 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
                 1, 3, 5, 6, 7, 0, 2, 4
         };
 
-        if (!dev || !rule)
-                return -EINVAL;
-
         if (idx >= PNP_MAX_DMA) {
                 pnp_err
                     ("More than 2 dmas is incompatible with pnp specifications.");
@@ -410,8 +398,6 @@ int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res,
         int i;
         struct pnp_resource_table *bak;
 
-        if (!dev || !res)
-                return -EINVAL;
         if (!pnp_can_configure(dev))
                 return -ENODEV;
         bak = pnp_alloc(sizeof(struct pnp_resource_table));
@@ -460,9 +446,6 @@ int pnp_auto_config_dev(struct pnp_dev *dev)
         struct pnp_option *dep;
         int i = 1;
 
-        if (!dev)
-                return -EINVAL;
-
         if (!pnp_can_configure(dev)) {
                 pnp_dbg("Device %s does not support resource configuration.",
                         dev->dev.bus_id);
@@ -541,8 +524,6 @@ int pnp_activate_dev(struct pnp_dev *dev)
 {
         int error;
 
-        if (!dev)
-                return -EINVAL;
         if (dev->active)
                 return 0;       /* the device is already active */
 
@@ -568,8 +549,6 @@ int pnp_disable_dev(struct pnp_dev *dev)
 {
         int error;
 
-        if (!dev)
-                return -EINVAL;
         if (!dev->active)
                 return 0;       /* the device is already disabled */
 
@@ -596,8 +575,6 @@ int pnp_disable_dev(struct pnp_dev *dev)
 void pnp_resource_change(struct resource *resource, resource_size_t start,
                          resource_size_t size)
 {
-        if (resource == NULL)
-                return;
         resource->flags &= ~(IORESOURCE_AUTO | IORESOURCE_UNSET);
         resource->start = start;
         resource->end = start + size - 1;