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Diffstat (limited to 'arch/powerpc/sysdev/mmio_nvram.c')
-rw-r--r--arch/powerpc/sysdev/mmio_nvram.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/sysdev/mmio_nvram.c b/arch/powerpc/sysdev/mmio_nvram.c
index 74e0d31a3559..ff23f5a4d4b9 100644
--- a/arch/powerpc/sysdev/mmio_nvram.c
+++ b/arch/powerpc/sysdev/mmio_nvram.c
@@ -32,7 +32,7 @@
static void __iomem *mmio_nvram_start;
static long mmio_nvram_len;
-static spinlock_t mmio_nvram_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(mmio_nvram_lock);
static ssize_t mmio_nvram_read(char *buf, size_t count, loff_t *index)
{
@@ -80,7 +80,7 @@ static ssize_t mmio_nvram_get_size(void)
int __init mmio_nvram_init(void)
{
struct device_node *nvram_node;
- unsigned long *buffer;
+ const unsigned long *buffer;
int proplen;
unsigned long nvram_addr;
int ret;
@@ -91,7 +91,7 @@ int __init mmio_nvram_init(void)
goto out;
ret = -EIO;
- buffer = (unsigned long *)get_property(nvram_node, "reg", &proplen);
+ buffer = get_property(nvram_node, "reg", &proplen);
if (proplen != 2*sizeof(unsigned long))
goto out;
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