[PATCH] powerpc: fix two build warnings

[Arnd Bergmann]

Building the arch/powerpc tree currently gives me
two warnings with gcc-4.0:

arch/powerpc/mm/imalloc.c: In function '__im_get_area':
arch/powerpc/mm/imalloc.c:225: warning: 'tmp' may be used uninitialized in this function
arch/powerpc/mm/hugetlbpage.c: In function 'hugetlb_get_unmapped_area':
arch/powerpc/mm/hugetlbpage.c:608: warning: unused variable 'vma'

both fixes are trivial.

Signed-off-by: Arnd Bergmann <arnd at arndb.de>

Index: powerpc-2.6/arch/powerpc/mm/imalloc.c
===================================================================
--- powerpc-2.6.orig/arch/powerpc/mm/imalloc.c
+++ powerpc-2.6/arch/powerpc/mm/imalloc.c
@@ -107,6 +107,7 @@ static int im_region_status(unsigned lon
 		if (v_addr < (unsigned long) tmp->addr + tmp->size)
 			break;
 
+	*vm = NULL;
 	if (tmp) {
 		if (im_region_overlaps(v_addr, size, tmp))
 			return IM_REGION_OVERLAP;
@@ -127,7 +128,6 @@ static int im_region_status(unsigned lon
 		}
 	}
 
-	*vm = NULL;
 	return IM_REGION_UNUSED;
 }
 
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 7283ff1..7370f9f 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -605,7 +605,6 @@ unsigned long hugetlb_get_unmapped_area(
 {
 	int lastshift;
 	u16 areamask, curareas;
-	struct vm_area_struct *vma;
 
 	if (HPAGE_SHIFT == 0)
 		return -EINVAL;