Factor out common instance destruction code into
a common function.

Suggested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/media/platform/qcom/venus/core.c      | 25 +++++++++++++++++++
 drivers/media/platform/qcom/venus/core.h      |  2 ++
 drivers/media/platform/qcom/venus/vdec.c      | 24 ++----------------
 drivers/media/platform/qcom/venus/vdec.h      |  1 -
 .../media/platform/qcom/venus/vdec_ctrls.c    |  5 ----
 drivers/media/platform/qcom/venus/venc.c      | 24 ++----------------
 drivers/media/platform/qcom/venus/venc.h      |  1 -
 .../media/platform/qcom/venus/venc_ctrls.c    |  5 ----
 8 files changed, 31 insertions(+), 56 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 423deb5e94dc..ee6c2051a0c4 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -19,6 +19,7 @@
 #include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>
 #include <media/videobuf2-v4l2.h>
+#include <media/v4l2-ctrls.h>
 #include <media/v4l2-mem2mem.h>
 #include <media/v4l2-ioctl.h>
 
@@ -502,6 +503,30 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
 	return ret;
 }
 
+void venus_close_common(struct venus_inst *inst)
+{
+	/*
+	 * First, remove the inst from the ->instances list, so that
+	 * to_instance() will return NULL.
+	 */
+	hfi_session_destroy(inst);
+	/*
+	 * Second, make sure we don't have IRQ/IRQ-thread currently running
+	 * or pending execution, which would race with the inst destruction.
+	 */
+	synchronize_irq(inst->core->irq);
+
+	v4l2_m2m_ctx_release(inst->m2m_ctx);
+	v4l2_m2m_release(inst->m2m_dev);
+	v4l2_fh_del(&inst->fh);
+	v4l2_fh_exit(&inst->fh);
+	v4l2_ctrl_handler_free(&inst->ctrl_handler);
+
+	mutex_destroy(&inst->lock);
+	mutex_destroy(&inst->ctx_q_lock);
+}
+EXPORT_SYMBOL_GPL(venus_close_common);
+
 static __maybe_unused int venus_runtime_resume(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 435325432922..7bb36a270e15 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -560,4 +560,6 @@ is_fw_rev_or_older(struct venus_core *core, u32 vmajor, u32 vminor, u32 vrev)
 		(core)->venus_ver.minor == vminor &&
 		(core)->venus_ver.rev <= vrev);
 }
+
+void venus_close_common(struct venus_inst *inst);
 #endif
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index b3192a36f388..cba95dc492f1 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -1737,7 +1737,7 @@ static int vdec_open(struct file *file)
 err_session_destroy:
 	hfi_session_destroy(inst);
 err_ctrl_deinit:
-	vdec_ctrl_deinit(inst);
+	v4l2_ctrl_handler_free(&inst->ctrl_handler);
 err_free:
 	kfree(inst);
 	return ret;
@@ -1748,29 +1748,9 @@ static int vdec_close(struct file *file)
 	struct venus_inst *inst = to_inst(file);
 
 	vdec_pm_get(inst);
-
 	cancel_work_sync(&inst->delayed_process_work);
-	/*
-	 * First, remove the inst from the ->instances list, so that
-	 * to_instance() will return NULL.
-	 */
-	hfi_session_destroy(inst);
-	/*
-	 * Second, make sure we don't have IRQ/IRQ-thread currently running
-	 * or pending execution, which would race with the inst destruction.
-	 */
-	synchronize_irq(inst->core->irq);
-
-	v4l2_m2m_ctx_release(inst->m2m_ctx);
-	v4l2_m2m_release(inst->m2m_dev);
+	venus_close_common(inst);
 	ida_destroy(&inst->dpb_ids);
-	v4l2_fh_del(&inst->fh);
-	v4l2_fh_exit(&inst->fh);
-	vdec_ctrl_deinit(inst);
-
-	mutex_destroy(&inst->lock);
-	mutex_destroy(&inst->ctx_q_lock);
-
 	vdec_pm_put(inst, false);
 
 	kfree(inst);
diff --git a/drivers/media/platform/qcom/venus/vdec.h b/drivers/media/platform/qcom/venus/vdec.h
index 6b262d0bf561..0cf981108ff0 100644
--- a/drivers/media/platform/qcom/venus/vdec.h
+++ b/drivers/media/platform/qcom/venus/vdec.h
@@ -9,6 +9,5 @@
 struct venus_inst;
 
 int vdec_ctrl_init(struct venus_inst *inst);
-void vdec_ctrl_deinit(struct venus_inst *inst);
 
 #endif
diff --git a/drivers/media/platform/qcom/venus/vdec_ctrls.c b/drivers/media/platform/qcom/venus/vdec_ctrls.c
index 7e0f29bf7fae..36ed955b0419 100644
--- a/drivers/media/platform/qcom/venus/vdec_ctrls.c
+++ b/drivers/media/platform/qcom/venus/vdec_ctrls.c
@@ -187,8 +187,3 @@ int vdec_ctrl_init(struct venus_inst *inst)
 
 	return 0;
 }
-
-void vdec_ctrl_deinit(struct venus_inst *inst)
-{
-	v4l2_ctrl_handler_free(&inst->ctrl_handler);
-}
diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
index 36981ce448f5..b9940da73772 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -1505,7 +1505,7 @@ static int venc_open(struct file *file)
 err_session_destroy:
 	hfi_session_destroy(inst);
 err_ctrl_deinit:
-	venc_ctrl_deinit(inst);
+	v4l2_ctrl_handler_free(&inst->ctrl_handler);
 err_free:
 	kfree(inst);
 	return ret;
@@ -1516,28 +1516,8 @@ static int venc_close(struct file *file)
 	struct venus_inst *inst = to_inst(file);
 
 	venc_pm_get(inst);
-
-	/*
-	 * First, remove the inst from the ->instances list, so that
-	 * to_instance() will return NULL.
-	 */
-	hfi_session_destroy(inst);
-	/*
-	 * Second, make sure we don't have IRQ/IRQ-thread currently running
-	 * or pending execution, which would race with the inst destruction.
-	 */
-	synchronize_irq(inst->core->irq);
-
-	v4l2_m2m_ctx_release(inst->m2m_ctx);
-	v4l2_m2m_release(inst->m2m_dev);
-	v4l2_fh_del(&inst->fh);
-	v4l2_fh_exit(&inst->fh);
-	venc_ctrl_deinit(inst);
-
+	venus_close_common(inst);
 	inst->enc_state = VENUS_ENC_STATE_DEINIT;
-	mutex_destroy(&inst->lock);
-	mutex_destroy(&inst->ctx_q_lock);
-
 	venc_pm_put(inst, false);
 
 	kfree(inst);
diff --git a/drivers/media/platform/qcom/venus/venc.h b/drivers/media/platform/qcom/venus/venc.h
index 4ea37fdcd9b8..719d0f73b14b 100644
--- a/drivers/media/platform/qcom/venus/venc.h
+++ b/drivers/media/platform/qcom/venus/venc.h
@@ -9,6 +9,5 @@
 struct venus_inst;
 
 int venc_ctrl_init(struct venus_inst *inst);
-void venc_ctrl_deinit(struct venus_inst *inst);
 
 #endif
diff --git a/drivers/media/platform/qcom/venus/venc_ctrls.c b/drivers/media/platform/qcom/venus/venc_ctrls.c
index d9d2a293f3ef..c6d1d3675466 100644
--- a/drivers/media/platform/qcom/venus/venc_ctrls.c
+++ b/drivers/media/platform/qcom/venus/venc_ctrls.c
@@ -635,8 +635,3 @@ int venc_ctrl_init(struct venus_inst *inst)
 	v4l2_ctrl_handler_free(&inst->ctrl_handler);
 	return ret;
 }
-
-void venc_ctrl_deinit(struct venus_inst *inst)
-{
-	v4l2_ctrl_handler_free(&inst->ctrl_handler);
-}
-- 
2.47.0.163.g1226f6d8fa-goog