[PATCH 5.14 105/151] drm/nouveau/debugfs: fix file release memory leak

From: Yang Yingliang <redacted>

[ Upstream commit f5a8703a9c418c6fc54eb772712dfe7641e3991c ]

When using single_open() for opening, single_release() should be
called, otherwise the 'op' allocated in single_open() will be leaked.

Fixes: 6e9fc177399f ("drm/nouveau/debugfs: add copy of sysfs pstate interface ported to debugfs")
Reported-by: Hulk Robot <redacted>
Signed-off-by: Yang Yingliang <redacted>
Reviewed-by: Karol Herbst <redacted>
Signed-off-by: Karol Herbst <redacted>
Link: https://patchwork.freedesktop.org/patch/msgid/20210911075023.3969054-2-yangyingliang@huawei.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nouveau_debugfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
index c2bc05eb2e54..1cbe01048b93 100644
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c

@@ -207,6 +207,7 @@ static const struct file_operations nouveau_pstate_fops = {
 	.open = nouveau_debugfs_pstate_open,
 	.read = seq_read,
 	.write = nouveau_debugfs_pstate_set,
+	.release = single_release,
 };
 
 static struct drm_info_list nouveau_debugfs_list[] = {

-- 
2.33.0