Re: [syzbot] [perf?] possible deadlock in refcount_dec_and_mutex_lock (2)

[Qing Wang]

#syz test

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 1f5699b339ec..accf23545d78 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7485,9 +7485,12 @@ static int perf_mmap(struct file *file, struct vm_area_struct *vma)
 		 */
 		ret = map_range(event->rb, vma);
 		if (ret)
-			perf_mmap_close(vma);
+			goto out_close;
 	}
 
+	return ret;
+out_close:
+	perf_mmap_close(vma);
 	return ret;
 }