X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fsort.c;h=6abbaf3d5858e587705881a4ab6d45a65b8f4e89;hb=bc9c4068388eea01d3b5da31016879f2341ecec5;hp=5f3b51ffa1dc2a6897b09b42cee81ef2870b9ec8;hpb=2fc2991175bf77395e6b15fe6b2304d3bf72da40;p=linux-2.6-omap-h63xx.git

diff --git a/lib/sort.c b/lib/sort.c
index 5f3b51ffa1d..6abbaf3d585 100644
--- a/lib/sort.c
+++ b/lib/sort.c
@@ -27,7 +27,7 @@ static void generic_swap(void *a, void *b, int size)
 	} while (--size > 0);
 }
 
-/*
+/**
  * sort - sort an array of elements
  * @base: pointer to data to sort
  * @num: number of elements
@@ -49,15 +49,15 @@ void sort(void *base, size_t num, size_t size,
 	  void (*swap)(void *, void *, int size))
 {
 	/* pre-scale counters for performance */
-	int i = (num/2) * size, n = num * size, c, r;
+	int i = (num/2 - 1) * size, n = num * size, c, r;
 
 	if (!swap)
 		swap = (size == 4 ? u32_swap : generic_swap);
 
 	/* heapify */
 	for ( ; i >= 0; i -= size) {
-		for (r = i; r * 2 < n; r  = c) {
-			c = r * 2;
+		for (r = i; r * 2 + size < n; r  = c) {
+			c = r * 2 + size;
 			if (c < n - size && cmp(base + c, base + c + size) < 0)
 				c += size;
 			if (cmp(base + r, base + c) >= 0)
@@ -67,10 +67,10 @@ void sort(void *base, size_t num, size_t size,
 	}
 
 	/* sort */
-	for (i = n - size; i >= 0; i -= size) {
+	for (i = n - size; i > 0; i -= size) {
 		swap(base, base + i, size);
-		for (r = 0; r * 2 < i; r = c) {
-			c = r * 2;
+		for (r = 0; r * 2 + size < i; r = c) {
+			c = r * 2 + size;
 			if (c < i - size && cmp(base + c, base + c + size) < 0)
 				c += size;
 			if (cmp(base + r, base + c) >= 0)