fix wrong malloc size

drivers/alsa/alsa_driver.c

@@ -867,9 +867,9 @@ alsa_driver_set_parameters (alsa_driver_t *driver,
 		memset (driver->playback_addr, 0,
 			sizeof(char *) * driver->playback_nchannels);
 		driver->playback_interleave_skip = (unsigned long*)
-						   malloc (sizeof(unsigned long *) * driver->playback_nchannels);
+						   malloc (sizeof(unsigned long) * driver->playback_nchannels);
 		memset (driver->playback_interleave_skip, 0,
-			sizeof(unsigned long *) * driver->playback_nchannels);
+			sizeof(unsigned long) * driver->playback_nchannels);
 		driver->silent = (unsigned long*)
 				 malloc (sizeof(unsigned long)
 					 * driver->playback_nchannels);
@@ -891,9 +891,9 @@ alsa_driver_set_parameters (alsa_driver_t *driver,
 		memset (driver->capture_addr, 0,
 			sizeof(char *) * driver->capture_nchannels);
 		driver->capture_interleave_skip = (unsigned long*)
-						  malloc (sizeof(unsigned long *) * driver->capture_nchannels);
+						  malloc (sizeof(unsigned long) * driver->capture_nchannels);
 		memset (driver->capture_interleave_skip, 0,
-			sizeof(unsigned long *) * driver->capture_nchannels);
+			sizeof(unsigned long) * driver->capture_nchannels);
 	}
 
 	driver->clock_sync_data = (ClockSyncStatus*)