Merged r3787:3788 from branches/SDL-1.2: better failures for joystick opening.
--- a/src/joystick/SDL_joystick.c Wed Jan 06 06:12:01 2010 +0000
+++ b/src/joystick/SDL_joystick.c Wed Jan 06 06:40:16 2010 +0000
@@ -114,64 +114,63 @@
/* Create and initialize the joystick */
joystick = (SDL_Joystick *) SDL_malloc((sizeof *joystick));
- if (joystick != NULL) {
- SDL_memset(joystick, 0, (sizeof *joystick));
- joystick->index = device_index;
- if (SDL_SYS_JoystickOpen(joystick) < 0) {
- SDL_free(joystick);
- joystick = NULL;
- } else {
- if (joystick->naxes > 0) {
- joystick->axes = (Sint16 *) SDL_malloc
- (joystick->naxes * sizeof(Sint16));
- }
- if (joystick->nhats > 0) {
- joystick->hats = (Uint8 *) SDL_malloc
- (joystick->nhats * sizeof(Uint8));
- }
- if (joystick->nballs > 0) {
- joystick->balls = (struct balldelta *) SDL_malloc
- (joystick->nballs * sizeof(*joystick->balls));
- }
- if (joystick->nbuttons > 0) {
- joystick->buttons = (Uint8 *) SDL_malloc
- (joystick->nbuttons * sizeof(Uint8));
- }
- if (((joystick->naxes > 0) && !joystick->axes)
- || ((joystick->nhats > 0) && !joystick->hats)
- || ((joystick->nballs > 0) && !joystick->balls)
- || ((joystick->nbuttons > 0) && !joystick->buttons)) {
- SDL_OutOfMemory();
- SDL_JoystickClose(joystick);
- joystick = NULL;
- }
- if (joystick->axes) {
- SDL_memset(joystick->axes, 0,
- joystick->naxes * sizeof(Sint16));
- }
- if (joystick->hats) {
- SDL_memset(joystick->hats, 0,
- joystick->nhats * sizeof(Uint8));
- }
- if (joystick->balls) {
- SDL_memset(joystick->balls, 0,
- joystick->nballs * sizeof(*joystick->balls));
- }
- if (joystick->buttons) {
- SDL_memset(joystick->buttons, 0,
- joystick->nbuttons * sizeof(Uint8));
- }
- }
+ if (joystick == NULL) {
+ SDL_OutOfMemory();
+ return NULL;
+ }
+
+ SDL_memset(joystick, 0, (sizeof *joystick));
+ joystick->index = device_index;
+ if (SDL_SYS_JoystickOpen(joystick) < 0) {
+ SDL_free(joystick);
+ return NULL;
+ }
+ if (joystick->naxes > 0) {
+ joystick->axes = (Sint16 *) SDL_malloc
+ (joystick->naxes * sizeof(Sint16));
+ }
+ if (joystick->nhats > 0) {
+ joystick->hats = (Uint8 *) SDL_malloc
+ (joystick->nhats * sizeof(Uint8));
+ }
+ if (joystick->nballs > 0) {
+ joystick->balls = (struct balldelta *) SDL_malloc
+ (joystick->nballs * sizeof(*joystick->balls));
+ }
+ if (joystick->nbuttons > 0) {
+ joystick->buttons = (Uint8 *) SDL_malloc
+ (joystick->nbuttons * sizeof(Uint8));
}
- if (joystick) {
- /* Add joystick to list */
- ++joystick->ref_count;
- SDL_Lock_EventThread();
- for (i = 0; SDL_joysticks[i]; ++i)
- /* Skip to next joystick */ ;
- SDL_joysticks[i] = joystick;
- SDL_Unlock_EventThread();
+ if (((joystick->naxes > 0) && !joystick->axes)
+ || ((joystick->nhats > 0) && !joystick->hats)
+ || ((joystick->nballs > 0) && !joystick->balls)
+ || ((joystick->nbuttons > 0) && !joystick->buttons)) {
+ SDL_OutOfMemory();
+ SDL_JoystickClose(joystick);
+ return NULL;
+ }
+ if (joystick->axes) {
+ SDL_memset(joystick->axes, 0, joystick->naxes * sizeof(Sint16));
+ }
+ if (joystick->hats) {
+ SDL_memset(joystick->hats, 0, joystick->nhats * sizeof(Uint8));
}
+ if (joystick->balls) {
+ SDL_memset(joystick->balls, 0,
+ joystick->nballs * sizeof(*joystick->balls));
+ }
+ if (joystick->buttons) {
+ SDL_memset(joystick->buttons, 0, joystick->nbuttons * sizeof(Uint8));
+ }
+
+ /* Add joystick to list */
+ ++joystick->ref_count;
+ SDL_Lock_EventThread();
+ for (i = 0; SDL_joysticks[i]; ++i)
+ /* Skip to next joystick */ ;
+ SDL_joysticks[i] = joystick;
+ SDL_Unlock_EventThread();
+
return (joystick);
}