[LTP] [PATCH] syscalls/kill11: add a check between hard limit and MIN_RLIMIT_CORE

[Yang Xu]

Currently, running this case will report EINVAL error if I run "ulimit -c
1023" command firstly. From setrlimit(2)manpage, it got EINVAL error because
rlim->rlim_cur was greater than rlim->rlim_max. So add a check for it before
setrlimit.

Reported-by: Pankaj Vinadrao Joshi <Pankaj.VJ@exaleapsemi.com>
Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
---
 testcases/kernel/syscalls/kill/kill11.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/testcases/kernel/syscalls/kill/kill11.c b/testcases/kernel/syscalls/kill/kill11.c
index 83fba5beb..5f70b0a07 100644
--- a/testcases/kernel/syscalls/kill/kill11.c
+++ b/testcases/kernel/syscalls/kill/kill11.c
@@ -201,6 +201,9 @@ void setup(void)
 
 	SAFE_GETRLIMIT(NULL, RLIMIT_CORE, &rlim);
 
+	if (rlim.rlim_max < MIN_RLIMIT_CORE)
+		tst_brkm(TCONF, NULL, "hard limit(%lu)less than MIN_RLIMT_CORE(%i)",
+				rlim.rlim_max, MIN_RLIMIT_CORE);
 	if (rlim.rlim_cur < MIN_RLIMIT_CORE) {
 		tst_resm(TINFO, "Adjusting RLIMIT_CORE to %i", MIN_RLIMIT_CORE);
 		rlim.rlim_cur = MIN_RLIMIT_CORE;
-- 
2.18.0