[PATCH] lib/sort.c, 2.6.22 kernel

["Subbaiah Venkata" <kvsnaidu@sapnaidu.net>]

Hello, I fixed and tested a small bug in lib/sort.c file, heap sort
function.

The fix avoids unnecessary swap of contents when i is 0 (saves few loads and
stores),
which happens every time sort function is called. I felt the fix is worth
bringing it 
to your attention given the importance and frequent use of the sort
function.

Thank you all.

==================================================================
diff --git a/lib/sort.c b/lib/sort.c
index 9615678..6abbaf3 100644
--- a/lib/sort.c
+++ b/lib/sort.c
@@ -67,7 +67,7 @@ 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 + size < i; r = c) {
                        c = r * 2 + size;