tonezone: Fix regression in Australian tone patch

Initialize db to 1.0 instead of doing it in a few, but not all, logic contexts.

Reported-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Signed-off-by: Shaun Ruffell <sruffell@digium.com>

tonezone.c

@@ -89,7 +89,8 @@ static int build_tone(void *data, size_t size, struct tone_zone_sound *t, int *c
 	int firstnobang = -1;
 	int freq1, freq2, time;
 	int modulate = 0;
-	float db, gain;
+	float db = 1.0;
+	float gain;
 	int used = 0;
 	dup = strdup(t->data);
 	s = strtok(dup, ",");
@@ -112,16 +113,13 @@ static int build_tone(void *data, size_t size, struct tone_zone_sound *t, int *c
 		} else if (sscanf(s, "%d+%d", &freq1, &freq2) == 2) {
 			PRINT_DEBUG("f1+f2 format: %d, %d\n", freq1, freq2);
 			time = 0;
-			db = 1.0;
 		} else if (sscanf(s, "%d*%d", &freq1, &freq2) == 2) {
 			PRINT_DEBUG("f1+f2 format: %d, %d\n", freq1, freq2);
 			modulate = 1;
 			time = 0;
-			db = 1.0;
 		} else if (sscanf(s, "%d/%d", &freq1, &time) == 2) {
 			PRINT_DEBUG("f1/time format: %d, %d\n", freq1, time);
 			freq2 = 0;
-			db = 1.0;
 		} else if (sscanf(s, "%d@/%d", &freq1, &time) == 2) {
 			/* The "@" character has been added to enable an
  			 * approximately -20db tone generation of any frequency This has been done
@@ -136,7 +134,6 @@ static int build_tone(void *data, size_t size, struct tone_zone_sound *t, int *c
 			firstnobang = *count;
 			freq2 = 0;
 			time = 0;
-			db = 1.0;
 		} else {
 			fprintf(stderr, "tone component '%s' of '%s' is a syntax error\n", s,t->data);
 			return -1;

xpp/xtalk/xusb.c

@@ -67,6 +67,8 @@ static void xusb_init();
  *     variable of that name. Existing options:
  *
  *     - "use-clear-halt" -- force USB "clear_halt" operation during
+ *                           device initialization (this is the default)
+ *     - "no-use-clear-halt" -- force no USB "clear_halt" operation during
  *                           device initialization
  *     - "no-lock" -- prevent using global sempahore to serialize libusb
  *                    initialization. Previously done via "XUSB_NOLOCK"
@@ -888,7 +890,7 @@ static void xusb_init()
 }
 
 /* XTALK option handling */
-static int use_clear_halt = 0;
+static int use_clear_halt = 1;
 static int libusb_no_lock = 0;
 
 static int xtalk_one_option(const char *option_string)
@@ -897,6 +899,10 @@ static int xtalk_one_option(const char *option_string)
 		use_clear_halt = 1;
 		return 0;
 	}
+	if (strcmp(option_string, "no-use-clear-halt") == 0) {
+		use_clear_halt = 0;
+		return 0;
+	}
 	if (strcmp(option_string, "no-lock") == 0) {
 		libusb_no_lock = 1;
 		return 0;