From: Bartosz Golaszewski <bartekgola@gmail.com>
Date: Tue, 16 May 2017 09:14:45 +0000 (+0200)
Subject: tests: only cleanup the gpio-mockup module from the main process
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2c846b8d88fc142cbe02b769444b1d30d82865a7;p=qemu-gpiodev%2Flibgpiod.git

tests: only cleanup the gpio-mockup module from the main process

In preparation for adding support for subprocesses: store the pid of
the main process and use it such that we don't try to unload the
mockup module twice leading to a splat from libkmod.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
---

diff --git a/tests/gpiod-test.c b/tests/gpiod-test.c
index 11330c4..bccf02f 100644
--- a/tests/gpiod-test.c
+++ b/tests/gpiod-test.c
@@ -61,6 +61,7 @@ static struct {
 	struct kmod_ctx *module_ctx;
 	struct kmod_module *module;
 	struct test_context test_ctx;
+	pid_t main_pid;
 } globals;
 
 enum {
@@ -232,6 +233,10 @@ static bool mockup_loaded(void)
 
 static void module_cleanup(void)
 {
+	/* Don't cleanup from child processes. */
+	if (globals.main_pid != getpid())
+		return;
+
 	msg("cleaning up");
 
 	if (mockup_loaded())
@@ -566,6 +571,7 @@ int main(int argc TEST_UNUSED, char **argv TEST_UNUSED)
 {
 	struct _test_case *test;
 
+	globals.main_pid = getpid();
 	atexit(module_cleanup);
 
 	msg("libgpiod test suite");