lib/test_kmod.c: fix rmmod double free

We free the misc device string twice on rmmod; fix this. Without this we cannot remove the module without crashing. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Luis Chamberlain <[email protected]> Reported-by: Randy Dunlap <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Cc: <[email protected]> [4.12+] Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
ambv · Nov 30, 2018 · 5618cf0 · 5618cf0
1 parent c7d7d62
commit 5618cf0
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/lib/test_kmod.c b/lib/test_kmod.c
@@ -1214,7 +1214,6 @@ void unregister_test_dev_kmod(struct kmod_test_device *test_dev)
 
 	dev_info(test_dev->dev, "removing interface\n");
 	misc_deregister(&test_dev->misc_dev);
-	kfree(&test_dev->misc_dev.name);
 
 	mutex_unlock(&test_dev->config_mutex);
 	mutex_unlock(&test_dev->trigger_mutex);