1 files changed, 7 insertions, 3 deletions

diff --git a/frame.c b/frame.c
index 5952b1d74..63c6c8c9c 100755
--- a/frame.c
+++ b/frame.c
@@ -1257,15 +1257,19 @@ int ast_frame_adjust_volume(struct ast_frame *f, int adjustment)
 {
 	int count;
 	short *fdata = f->data;
+	short adjust_value = abs(adjustment);
 
 	if ((f->frametype != AST_FRAME_VOICE) || (f->subclass != AST_FORMAT_SLINEAR))
 		return -1;
 
+	if (!adjustment)
+		return 0;
+
 	for (count = 0; count < f->samples; count++) {
 		if (adjustment > 0) {
-			ast_slinear_saturated_multiply(&fdata[count], abs(adjustment));
+			ast_slinear_saturated_multiply(&fdata[count], &adjust_value);
 		} else if (adjustment < 0) {
-			ast_slinear_saturated_divide(&fdata[count], abs(adjustment));
+			ast_slinear_saturated_divide(&fdata[count], &adjust_value);
 		}
 	}
 
@@ -1289,7 +1293,7 @@ int ast_frame_slinear_sum(struct ast_frame *f1, struct ast_frame *f2)
 	for (count = 0, data1 = f1->data, data2 = f2->data;
 	     count < f1->samples;
 	     count++, data1++, data2++)
-		ast_slinear_saturated_add(data1, *data2);
+		ast_slinear_saturated_add(data1, data2);
 
 	return 0;
 }