[PATCH 6/6] s390x: Mark archrandom.h functions __must_check

[Richard Henderson]

We cannot use the pointer output without validating the
success of the random read.

Signed-off-by: Richard Henderson <rth at twiddle.net>
---
Cc: Heiko Carstens <heiko.carstens at de.ibm.com>
Cc: Vasily Gorbik <gor at linux.ibm.com>
Cc: Christian Borntraeger <borntraeger at de.ibm.com>
---
 arch/s390/include/asm/archrandom.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/s390/include/asm/archrandom.h b/arch/s390/include/asm/archrandom.h
index c67b82dfa558..f3f1ee0a8c38 100644
--- a/arch/s390/include/asm/archrandom.h
+++ b/arch/s390/include/asm/archrandom.h
@@ -33,17 +33,17 @@ static inline bool arch_has_random_seed(void)
 	return false;
 }
 
-static inline bool arch_get_random_long(unsigned long *v)
+static inline bool __must_check arch_get_random_long(unsigned long *v)
 {
 	return false;
 }
 
-static inline bool arch_get_random_int(unsigned int *v)
+static inline bool __must_check arch_get_random_int(unsigned int *v)
 {
 	return false;
 }
 
-static inline bool arch_get_random_seed_long(unsigned long *v)
+static inline bool __must_check arch_get_random_seed_long(unsigned long *v)
 {
 	if (static_branch_likely(&s390_arch_random_available)) {
 		return s390_arch_random_generate((u8 *)v, sizeof(*v));
@@ -51,7 +51,7 @@ static inline bool arch_get_random_seed_long(unsigned long *v)
 	return false;
 }
 
-static inline bool arch_get_random_seed_int(unsigned int *v)
+static inline bool __must_check arch_get_random_seed_int(unsigned int *v)
 {
 	if (static_branch_likely(&s390_arch_random_available)) {
 		return s390_arch_random_generate((u8 *)v, sizeof(*v));
-- 
2.17.1