Mention -1 return code on failure for landlock_add_rule(), landlock_create_ruleset() and landlock_restrict_self(). Although it's a common rule to return -1 on error, it's better to be explicit (as the other man pages are). Fixes: a01d04a69 ("landlock_add_rule.2: Document new syscall") Fixes: ca5163697 ("landlock_create_ruleset.2: Document new syscall") Fixes: 3f7e4f808 ("landlock_restrict_self.2: Document new syscall") Reviewed-by: Günther Noack <gnoack@xxxxxxxxxx> Signed-off-by: Petr Vorel <pvorel@xxxxxxx> --- changes v1->v2: * s/the cause of //g man/man2/landlock_add_rule.2 | 4 ++++ man/man2/landlock_create_ruleset.2 | 4 ++++ man/man2/landlock_restrict_self.2 | 4 ++++ 3 files changed, 12 insertions(+) diff --git a/man/man2/landlock_add_rule.2 b/man/man2/landlock_add_rule.2 index 4b95afb07..d4ae8f2f6 100644 --- a/man/man2/landlock_add_rule.2 +++ b/man/man2/landlock_add_rule.2 @@ -79,6 +79,10 @@ must be 0. On success, .BR landlock_add_rule () returns 0. +On error, +\-1 is returned and +.I errno +is set to indicate the error. .SH ERRORS .BR landlock_add_rule () can fail for the following reasons: diff --git a/man/man2/landlock_create_ruleset.2 b/man/man2/landlock_create_ruleset.2 index e62a3f9b9..618d54f37 100644 --- a/man/man2/landlock_create_ruleset.2 +++ b/man/man2/landlock_create_ruleset.2 @@ -86,6 +86,10 @@ returns a new Landlock ruleset file descriptor, or a Landlock ABI version, according to .IR flags . +On error, +\-1 is returned and +.I errno +is set to indicate the error. .SH ERRORS .BR landlock_create_ruleset () can fail for the following reasons: diff --git a/man/man2/landlock_restrict_self.2 b/man/man2/landlock_restrict_self.2 index 43f15c932..d4e5e753c 100644 --- a/man/man2/landlock_restrict_self.2 +++ b/man/man2/landlock_restrict_self.2 @@ -72,6 +72,10 @@ must be 0. On success, .BR landlock_restrict_self () returns 0. +On error, +\-1 is returned and +.I errno +is set to indicate the error. .SH ERRORS .BR landlock_restrict_self () can fail for the following reasons: -- 2.45.2