1 files changed, 5 insertions, 6 deletions

diff --git a/drivers/tty/hvc/hvc_dcc.c b/drivers/tty/hvc/hvc_dcc.c
index 6470f63deb4b..155ec105e1c8 100644
--- a/drivers/tty/hvc/hvc_dcc.c
+++ b/drivers/tty/hvc/hvc_dcc.c
@@ -33,8 +33,7 @@
 static inline u32 __dcc_getstatus(void)
 {
         u32 __ret;
-
-        asm("mrc p14, 0, %0, c0, c1, 0  @ read comms ctrl reg"
+        asm volatile("mrc p14, 0, %0, c0, c1, 0 @ read comms ctrl reg"
                 : "=r" (__ret) : : "cc");
 
         return __ret;
@@ -46,7 +45,7 @@ static inline char __dcc_getchar(void)
 {
         char __c;
 
-        asm("get_wait:  mrc p14, 0, pc, c0, c1, 0                          \n\
+        asm volatile("get_wait: mrc p14, 0, pc, c0, c1, 0                  \n\
                         bne get_wait                                       \n\
                         mrc p14, 0, %0, c0, c5, 0       @ read comms data reg"
                 : "=r" (__c) : : "cc");
@@ -58,7 +57,7 @@ static inline char __dcc_getchar(void)
 {
         char __c;
 
-        asm("mrc p14, 0, %0, c0, c5, 0  @ read comms data reg"
+        asm volatile("mrc p14, 0, %0, c0, c5, 0 @ read comms data reg"
                 : "=r" (__c));
 
         return __c;
@@ -68,7 +67,7 @@ static inline char __dcc_getchar(void)
 #if defined(CONFIG_CPU_V7)
 static inline void __dcc_putchar(char c)
 {
-        asm("put_wait:  mrc p14, 0, pc, c0, c1, 0                 \n\
+        asm volatile("put_wait: mrc p14, 0, pc, c0, c1, 0         \n\
                         bcs put_wait                              \n\
                         mcr p14, 0, %0, c0, c5, 0                   "
         : : "r" (c) : "cc");
@@ -76,7 +75,7 @@ static inline void __dcc_putchar(char c)
 #else
 static inline void __dcc_putchar(char c)
 {
-        asm("mcr p14, 0, %0, c0, c5, 0  @ write a char"
+        asm volatile("mcr p14, 0, %0, c0, c5, 0 @ write a char"
                 : /* no output register */
                 : "r" (c));
 }