[tip:ras/core] x86/RAS/mce_amd_inj: Remove debugfs dir recursively on exit

[tip-bot for Borislav Petkov]

Commit-ID:  b199ac6c4943aa0db246163bf6b483e2bb53431b
Gitweb:     http://git.kernel.org/tip/b199ac6c4943aa0db246163bf6b483e2bb53431b
Author:     Borislav Petkov <bp@xxxxxxx>
AuthorDate: Mon, 26 Sep 2016 10:31:52 +0200
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 26 Sep 2016 11:13:17 +0200

x86/RAS/mce_amd_inj: Remove debugfs dir recursively on exit

Simplify exit_mce_inject() by using debugfs_remove_recursive() and do
away with the noodling over the dentry elements.

Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20160926083152.30848-3-bp@xxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 arch/x86/ras/mce_amd_inj.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/x86/ras/mce_amd_inj.c b/arch/x86/ras/mce_amd_inj.c
index 20b227f..1ac7647 100644
--- a/arch/x86/ras/mce_amd_inj.c
+++ b/arch/x86/ras/mce_amd_inj.c
@@ -475,15 +475,11 @@ err_dfs_add:
 
 static void __exit exit_mce_inject(void)
 {
-	int i;
 
-	for (i = 0; i < ARRAY_SIZE(dfs_fls); i++)
-		debugfs_remove(dfs_fls[i].d);
+	debugfs_remove_recursive(dfs_inj);
+	dfs_inj = NULL;
 
 	memset(&dfs_fls, 0, sizeof(dfs_fls));
-
-	debugfs_remove(dfs_inj);
-	dfs_inj = NULL;
 }
 module_init(init_mce_inject);
 module_exit(exit_mce_inject);