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From 90e1ce27d9e3bc85cf21f2bef33a71632e1c61b1 Mon Sep 17 00:00:00 2001
From: David Mao <david.mao@amd.com>
Date: Tue, 14 Mar 2017 11:23:50 +0800
Subject: [PATCH 0791/4131] drm/amdgpu - Fix multiple export failure found in
vulkan cts
we need to set the core->file to null once the file got released.
Change-Id: I842667f3d121c47a6dfd8ff06d29636781327810
Signed-off-by: David Mao <david.mao@amd.com>
Reviewed-by: Chunming Zhou <David1.Zhou@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c
index 7df2552..8789a4e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c
@@ -76,6 +76,11 @@ static int amdgpu_sem_release(struct inode *inode, struct file *file)
{
struct amdgpu_sem_core *core = file->private_data;
+ /* set the core->file to null if file got released */
+ mutex_lock(&core->lock);
+ core->file = NULL;
+ mutex_unlock(&core->lock);
+
kref_put(&core->kref, amdgpu_sem_core_free);
return 0;
}
@@ -293,6 +298,7 @@ static int amdgpu_sem_export(struct amdgpu_fpriv *fpriv,
*fd = ret;
amdgpu_sem_put(sem);
+
return 0;
err_put_file:
--
2.7.4
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