[PATCH] drm/pagemap: Unlock cache->lock before freeing it

[Matthew Brost <matthew.brost@intel.com>]

From: Bart Van Assche <bvanassche@acm.org>

Although freeing a spinlock without unlocking it is fine, this confuses
static analyzers. Hence this patch.

Fixes: 77f14f2f2d73 ("drm/pagemap: Add a drm_pagemap cache and shrinker")
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
---
 drivers/gpu/drm/drm_pagemap_util.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_pagemap_util.c b/drivers/gpu/drm/drm_pagemap_util.c
index 14ddb948a32e..50cb5f9cdac5 100644
--- a/drivers/gpu/drm/drm_pagemap_util.c
+++ b/drivers/gpu/drm/drm_pagemap_util.c
@@ -74,6 +74,8 @@ static void drm_pagemap_cache_fini(void *arg)
 		cache->dpagemap = NULL;
 		spin_unlock(&cache->lock);
 		drm_pagemap_destroy(dpagemap, false);
+	} else {
+		spin_unlock(&cache->lock);
 	}
 
 out:
-- 
2.34.1