Metag architecture changes for v3.17

Just a couple of minor static analysis fixes, removal of a NULL check
 that should never happen, and fix an error check where an unsigned value
 was being checked to see if it was negative.
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Merge tag 'metag-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

Pull metag architecture updates from James Hogan:
 "Just a couple of minor static analysis fixes, removal of a NULL check
  that should never happen, and fix an error check where an unsigned
  value was being checked to see if it was negative"

* tag 'metag-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  metag: cachepart: Fix failure check
  metag: hugetlbpage: Remove null pointer checks that could never happen

arch/metag/kernel/cachepart.c

@@ -55,7 +55,7 @@ unsigned int get_global_icache_size(void)
 	return (get_icache_size() * ((temp >> SYSC_xCPARTG_AND_S) + 1)) >> 4;
 }
 
-static unsigned int get_thread_cache_size(unsigned int cache, int thread_id)
+static int get_thread_cache_size(unsigned int cache, int thread_id)
 {
 	unsigned int cache_size;
 	unsigned int t_cache_part;
@@ -94,7 +94,7 @@ static unsigned int get_thread_cache_size(unsigned int cache, int thread_id)
 
 void check_for_cache_aliasing(int thread_id)
 {
-	unsigned int thread_cache_size;
+	int thread_cache_size;
 	unsigned int cache_type;
 	for (cache_type = ICACHE; cache_type <= DCACHE; cache_type++) {
 		thread_cache_size =

arch/metag/mm/hugetlbpage.c

@@ -173,7 +173,7 @@ new_search:
 				mm->context.part_huge = 0;
 			return addr;
 		}
-		if (vma && (vma->vm_flags & MAP_HUGETLB)) {
+		if (vma->vm_flags & MAP_HUGETLB) {
 			/* space after a huge vma in 2nd level page table? */
 			if (vma->vm_end & HUGEPT_MASK) {
 				after_huge = 1;