[evolution] Bug 628522 - invalid access off end of array in e_bit_array_delete()

[David Woodhouse <dwmw2 src gnome org>]

commit b79bf3d187cabd11df74d2e6e414e41ae637f307
Author: David Woodhouse <David Woodhouse intel com>
Date:   Fri Sep 17 14:05:13 2010 +0100

    Bug 628522 - invalid access off end of array in e_bit_array_delete()

 e-util/e-bit-array.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/e-util/e-bit-array.c b/e-util/e-bit-array.c
index 842361d..d8aa620 100644
--- a/e-util/e-bit-array.c
+++ b/e-util/e-bit-array.c
@@ -75,10 +75,11 @@ e_bit_array_delete_real (EBitArray *eba, gint row, gboolean move_selection_mode)
 	gint i;
 	gint last;
 	gint selected = FALSE;
-	if (eba->bit_count >= 0) {
+
+	if (eba->bit_count > 0) {
 		guint32 bitmask;
 		box = row >> 5;
-		last = eba->bit_count >> 5;
+		last = (eba->bit_count - 1) >> 5;
 
 		/* Build bitmasks for the left and right half of the box */
 		bitmask = BITMASK_RIGHT (row) >> 1;