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authorRichard Henderson <richard.henderson@linaro.org>2020-01-10 14:54:18 +0000
committerTheodore Ts'o <tytso@mit.edu>2020-01-25 12:18:50 -0500
commit904caa6413c87aacbf7d0682da617c39ca18cf1a (patch)
tree2c605f64899021df04f7b324262f567b96cd095f /include/linux/random.h
parent66f5ae899ada79c0e9a3d8d954f93a72344cd350 (diff)
linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
We must not use the pointer output without validating the success of the random read. Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20200110145422.49141-7-broonie@kernel.org Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/linux/random.h')
-rw-r--r--include/linux/random.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/random.h b/include/linux/random.h
index ea0e2f5f1ec5..d319f9a1e429 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -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;
}