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Commit 00d2580f authored by Vishalsingh Hajeri's avatar Vishalsingh Hajeri Committed by Gerrit - the friendly Code Review server
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msm: camera: core: Add debug messages for cam context leak 



Add debug messages in acquire and release to print leaking
cam contexts.

Change-Id: I9b7fc531c9fef66c9caa45821b323daae6c7634b
Signed-off-by: default avatarVishalsingh Hajeri <vhajeri@codeaurora.org>
parent bb669d3e

drivers/media/platform/msm/camera/cam_core/cam_node.c

+39 −0
Original line number Diff line number Diff line
@@ -18,6 +18,34 @@ 
#include "cam_trace.h"

#include "cam_debug_util.h"



static void cam_node_print_ctx_state(

	struct cam_node *node)

{

	int i;

	struct cam_context *ctx;



	CAM_INFO(CAM_CORE, "[%s] state=%d, ctx_size %d",

		node->name, node->state, node->ctx_size);



	mutex_lock(&node->list_mutex);

	for (i = 0; i < node->ctx_size; i++) {

		ctx = &node->ctx_list[i];



		spin_lock(&ctx->lock);

		CAM_INFO(CAM_CORE,

			"[%s][%d] : state=%d, refcount=%d, active_req_list=%d, pending_req_list=%d, wait_req_list=%d, free_req_list=%d",

			ctx->dev_name ? ctx->dev_name : "null",

			i, ctx->state,

			atomic_read(&(ctx->refcount.refcount)),

			list_empty(&ctx->active_req_list),

			list_empty(&ctx->pending_req_list),

			list_empty(&ctx->wait_req_list),

			list_empty(&ctx->free_req_list));

		spin_unlock(&ctx->lock);

	}

	mutex_unlock(&node->list_mutex);

}



static struct cam_context *cam_node_get_ctxt_from_free_list(

		struct cam_node *node)

{
@@ -75,6 +103,10 @@ static int __cam_node_handle_acquire_dev(struct cam_node *node, 


	ctx = cam_node_get_ctxt_from_free_list(node);

	if (!ctx) {

		CAM_ERR(CAM_CORE, "No free ctx in free list node %s",

			node->name);

		cam_node_print_ctx_state(node);



		rc = -ENOMEM;

		goto err;

	}
@@ -86,6 +118,9 @@ static int __cam_node_handle_acquire_dev(struct cam_node *node, 
		goto free_ctx;

	}



	CAM_DBG(CAM_CORE, "[%s] Acquire ctx_id %d",

		node->name, ctx->ctx_id);



	return 0;

free_ctx:

	cam_context_putref(ctx);
@@ -260,6 +295,10 @@ static int __cam_node_handle_release_dev(struct cam_node *node, 
		CAM_ERR(CAM_CORE, "destroy device handle is failed node %s",

			node->name);



	CAM_DBG(CAM_CORE, "[%s] Release ctx_id=%d, refcount=%d",

		node->name, ctx->ctx_id,

		atomic_read(&(ctx->refcount.refcount)));



	cam_context_putref(ctx);

	return rc;

}