diff --git a/linux/alsa/alsa_driver.c b/linux/alsa/alsa_driver.c
index 8e79d52b..39be0624 100644
--- a/linux/alsa/alsa_driver.c
+++ b/linux/alsa/alsa_driver.c
@@ -312,19 +312,9 @@ alsa_driver_setup_io_function_pointers (alsa_driver_t *driver)
 				break;
 
 			case 4: /* NO DITHER */
-				switch (driver->playback_sample_format) {
-				case SND_PCM_FORMAT_S24_LE:
-				case SND_PCM_FORMAT_S24_BE:
-					driver->write_via_copy = driver->quirk_bswap?
-						sample_move_d32u24_sSs:
-						sample_move_d32u24_sS;
-					break;
-				default:
-					driver->write_via_copy = driver->quirk_bswap?
-						sample_move_d32_sSs:
-						sample_move_d32_sS;
-					break;
-				}
+				driver->write_via_copy = driver->quirk_bswap?
+					sample_move_d32u24_sSs:
+					sample_move_d32u24_sS;
 				break;
 
 			default:
@@ -351,20 +341,9 @@ alsa_driver_setup_io_function_pointers (alsa_driver_t *driver)
 					sample_move_dS_s24;
 				break;
 			case 4:
-				switch (driver->playback_sample_format) {
-				case SND_PCM_FORMAT_S24_LE:
-				case SND_PCM_FORMAT_S24_BE:
-					driver->read_via_copy = driver->quirk_bswap?
-						sample_move_dS_s32u24s:
-						sample_move_dS_s32u24;
-					break;
-				default:
-					driver->read_via_copy = driver->quirk_bswap?
-						sample_move_dS_s32s:
-						sample_move_dS_s32;
-					break;
-				}
-
+				driver->read_via_copy = driver->quirk_bswap?
+					sample_move_dS_s32u24s:
+					sample_move_dS_s32u24;
 				break;
 			}
 		}