Re: [PATCH 2/4] key: Consistently return errno from syscall wrappers

--- ell/key.c | 43 ++++++++++++++++++++++++++++++++++++------- 1 file changed, 36 insertions(+), 7 deletions(-) diff --git a/ell/key.c b/ell/key.c index 6117e31..60602f9 100644 --- a/ell/key.c +++ b/ell/key.c @@ -64,43 +64,72 @@ static const char * const key_type_names[] = { static long kernel_add_key(const char *type, const char *description, const void *payload, size_t len, int32_t keyring) { - return syscall(__NR_add_key, type, description, payload, len, keyring); + long result; + + result = syscall(__NR_add_key, type, description, payload, len, + keyring); + + return result >= 0 ? result : -errno; }