ACPI: Fix sparse warnings

Use NULL for pointers

drivers/acpi/osl.c:208:10: warning: Using plain integer as NULL pointer
drivers/acpi/tables/tbxface.c:411:49: warning: Using plain integer as NULL pointer
drivers/acpi/processor_core.c:1008:10: warning: Using plain integer as NULL pointer

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 0f6f3bc..63060a1 100644 (file)
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -205,7 +205,7 @@ void __iomem *acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
 {
        if (phys > ULONG_MAX) {
                printk(KERN_ERR PREFIX "Cannot map memory that high\n");
-               return 0;
+               return NULL;
        }
        if (acpi_gbl_permanent_mmap)
                /*

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 61d976e..4b3d15f 100644 (file)
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -1005,7 +1005,7 @@ static int __init acpi_processor_init(void)
 #ifdef CONFIG_SMP
        if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
                                (struct acpi_table_header **)&madt)))
-               madt = 0;
+               madt = NULL;
 #endif
 
        acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);

diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c
index 807978d..8193700 100644 (file)
--- a/drivers/acpi/tables/tbxface.c
+++ b/drivers/acpi/tables/tbxface.c
@@ -408,7 +408,7 @@ acpi_get_table(char *signature,
                }
 
                if (!acpi_gbl_permanent_mmap) {
-                       acpi_gbl_root_table_list.tables[i].pointer = 0;
+                       acpi_gbl_root_table_list.tables[i].pointer = NULL;
                }
 
                return (status);