diff --git a/arch/blackfin/cpu/os_log.c b/arch/blackfin/cpu/os_log.c
index e1c8e2948dede6feeb6c7dd7cc73f5e46a1ac808..2092d9e3b6efa559f0af463b29f0ce78f4e760ad 100644
--- a/arch/blackfin/cpu/os_log.c
+++ b/arch/blackfin/cpu/os_log.c
@@ -12,12 +12,12 @@
 #define OS_LOG_MAGIC_ADDR  ((unsigned long *)0x4f0)
 #define OS_LOG_PTR_ADDR    ((char **)0x4f4)
 
-bool bfin_os_log_check(void)
+int bfin_os_log_check(void)
 {
 	if (*OS_LOG_MAGIC_ADDR != OS_LOG_MAGIC)
-		return false;
+		return 0;
 	*OS_LOG_MAGIC_ADDR = 0;
-	return true;
+	return 1;
 }
 
 void bfin_os_log_dump(void)
diff --git a/arch/blackfin/include/asm/blackfin_local.h b/arch/blackfin/include/asm/blackfin_local.h
index ab31dcb815130181fc8f3cf09c09cbbc3049e106..8ea8cde691af46d3dac02ab3cdf79c0e137ec9c8 100644
--- a/arch/blackfin/include/asm/blackfin_local.h
+++ b/arch/blackfin/include/asm/blackfin_local.h
@@ -51,7 +51,7 @@ extern u_long get_dclk(void);
 
 # define bfin_revid() (bfin_read_CHIPID() >> 28)
 
-extern bool bfin_os_log_check(void);
+extern int bfin_os_log_check(void);
 extern void bfin_os_log_dump(void);
 
 extern void blackfin_icache_flush_range(const void *, const void *);