[2.6 patch] cpqphp_ctrl.c: remove dead code

From: Adrian Bunk
Date: Mon Jul 23 2007 - 10:51:53 EST


If !mem_node we did already return -ENOMEM above in the function.

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>

---

drivers/pci/hotplug/cpqphp_ctrl.c | 28 +++++++---------------------
1 file changed, 7 insertions(+), 21 deletions(-)

--- linux-2.6.22-rc6-mm1/drivers/pci/hotplug/cpqphp_ctrl.c.old 2007-07-23 15:13:27.000000000 +0200
+++ linux-2.6.22-rc6-mm1/drivers/pci/hotplug/cpqphp_ctrl.c 2007-07-23 15:15:22.000000000 +0200
@@ -2558,29 +2558,15 @@ static int configure_new_function(struct
hold_IO_node = NULL;
}

- /* If we have memory resources copy them and fill in the
- * bridge's memory range registers. Otherwise, fill in the
- * range registers with values that disable them. */
- if (mem_node) {
- memcpy(hold_mem_node, mem_node, sizeof(struct pci_resource));
- mem_node->next = NULL;
-
- /* set Mem base and Limit registers */
- temp_word = mem_node->base >> 16;
- rc = pci_bus_write_config_word(pci_bus, devfn, PCI_MEMORY_BASE, temp_word);
+ memcpy(hold_mem_node, mem_node, sizeof(struct pci_resource));
+ mem_node->next = NULL;

- temp_word = (mem_node->base + mem_node->length - 1) >> 16;
- rc = pci_bus_write_config_word(pci_bus, devfn, PCI_MEMORY_LIMIT, temp_word);
- } else {
- temp_word = 0xFFFF;
- rc = pci_bus_write_config_word(pci_bus, devfn, PCI_MEMORY_BASE, temp_word);
-
- temp_word = 0x0000;
- rc = pci_bus_write_config_word(pci_bus, devfn, PCI_MEMORY_LIMIT, temp_word);
+ /* set Mem base and Limit registers */
+ temp_word = mem_node->base >> 16;
+ rc = pci_bus_write_config_word(pci_bus, devfn, PCI_MEMORY_BASE, temp_word);

- kfree(hold_mem_node);
- hold_mem_node = NULL;
- }
+ temp_word = (mem_node->base + mem_node->length - 1) >> 16;
+ rc = pci_bus_write_config_word(pci_bus, devfn, PCI_MEMORY_LIMIT, temp_word);

memcpy(hold_p_mem_node, p_mem_node, sizeof(struct pci_resource));
p_mem_node->next = NULL;

-
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