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-rw-r--r--src/libultra_boot_O2/__osSiDeviceBusy.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libultra_boot_O2/__osSiDeviceBusy.c b/src/libultra_boot_O2/__osSiDeviceBusy.c
index 8bb777745..86833fd36 100644
--- a/src/libultra_boot_O2/__osSiDeviceBusy.c
+++ b/src/libultra_boot_O2/__osSiDeviceBusy.c
@@ -1,7 +1,7 @@
#include <global.h>
#include <ultra64/hardware.h>
-u32 __osSiDeviceBusy() {
+s32 __osSiDeviceBusy() {
register u32 status;
status = HW_REG(SI_STATUS_REG, u32);
if (status & (SI_STATUS_DMA_BUSY | SI_STATUS_IO_READ_BUSY)) {