linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check (904caa64) · Commits · 戴 / test

We must not use the pointer output without validating the success of the random read. Reviewed-by:

include/linux/random.h

+4 −4

Original line number	Diff line number	Diff line
		@@ -167,19 +167,19 @@ static inline void prandom_seed_state(struct rnd_state *state, u64 seed)
		#ifdef CONFIG_ARCH_RANDOM
		# include <asm/archrandom.h>
		#else
		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)
		{
		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)
		{
		return false;
		}