From 02e5ad973883c36c0868b301b8357d9c455bb91c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 26 Jun 2019 20:43:53 -0400
Subject: [PATCH] perf_event_get(): don't bother with fget_raw()
... since we immediately follow that with check that it *is* an
opened perf file, with O_PATH ones ending with with the same
-EBADF we'd get for descriptor that isn't opened at all.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
kernel/events/core.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index abbd4b3b96c2a..f9ff04c8d0849 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -11554,9 +11554,7 @@ void perf_event_delayed_put(struct task_struct *task)
struct file *perf_event_get(unsigned int fd)
{
- struct file *file;
-
- file = fget_raw(fd);
+ struct file *file = fget(fd);
if (!file)
return ERR_PTR(-EBADF);
--
GitLab