Index: uspace/lib/c/arch/ppc32/src/stacktrace.c
===================================================================
--- uspace/lib/c/arch/ppc32/src/stacktrace.c	(revision 8d2dd7f2d52fbc7693f94b66e451eeff3756d061)
+++ uspace/lib/c/arch/ppc32/src/stacktrace.c	(revision 98893ede399d6eed12edddf404da1f101f415345)
@@ -49,10 +49,10 @@
 }
 
-int stacktrace_fp_prev(stacktrace_t *st, uintptr_t fp, uintptr_t *prev)
+errno_t stacktrace_fp_prev(stacktrace_t *st, uintptr_t fp, uintptr_t *prev)
 {
 	return (*st->ops->read_uintptr)(st->op_arg, fp + FRAME_OFFSET_FP_PREV, prev);
 }
 
-int stacktrace_ra_get(stacktrace_t *st, uintptr_t fp, uintptr_t *ra)
+errno_t stacktrace_ra_get(stacktrace_t *st, uintptr_t fp, uintptr_t *ra)
 {
 	return (*st->ops->read_uintptr)(st->op_arg, fp + FRAME_OFFSET_RA, ra);