diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index fdf44cac08e6d0026dab6095f46b55924cd89b1d..d02e7c0f5bfdff1c6c56372113e230e55be54f5f 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -213,14 +213,16 @@ config DEBUG_DEVRES
 	  If you are unsure about this, Say N here.
 
 config DEBUG_TEST_DRIVER_REMOVE
-	bool "Test driver remove calls during probe"
+	bool "Test driver remove calls during probe (UNSTABLE)"
 	depends on DEBUG_KERNEL
 	help
 	  Say Y here if you want the Driver core to test driver remove functions
 	  by calling probe, remove, probe. This tests the remove path without
 	  having to unbind the driver or unload the driver module.
 
-	  If you are unsure about this, say N here.
+	  This option is expected to find errors and may render your system
+	  unusable. You should say N here unless you are explicitly looking to
+	  test this functionality.
 
 config SYS_HYPERVISOR
 	bool
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index 2bcb86e6e6ca0988cbe4337c970247869db34a24..78219d5644e90aacaf3aeb9fdfe2a234f4e31b84 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -911,6 +911,7 @@ const struct file_operations kernfs_file_fops = {
 	.open		= kernfs_fop_open,
 	.release	= kernfs_fop_release,
 	.poll		= kernfs_fop_poll,
+	.fsync		= noop_fsync,
 };
 
 /**