Merge "diag: Add mutex protection while reading dci debug statistics"

static int diag_dbgfs_finished;

static int diag_dbgfs_dci_data_index;

static int diag_dbgfs_dci_finished;

static struct mutex diag_dci_dbgfs_mutex;

static ssize_t diag_dbgfs_read_status(struct file *file, char __user *ubuf,

				      size_t count, loff_t *ppos)

{

	buf_size = ksize(buf);

	bytes_remaining = buf_size;

	mutex_lock(&diag_dci_dbgfs_mutex);

	if (diag_dbgfs_dci_data_index == 0) {

		bytes_written =

			scnprintf(buf, buf_size,

		}

		temp_data++;

	}

	diag_dbgfs_dci_data_index = (i >= DIAG_DCI_DEBUG_CNT) ? 0 : i + 1;

	mutex_unlock(&diag_dci_dbgfs_mutex);

	bytes_written = simple_read_from_buffer(ubuf, count, ppos, buf,

								bytes_in_buf);

	kfree(buf);

		pr_warn("diag: could not allocate memory for dci debug info\n");

	mutex_init(&dci_stat_mutex);

	mutex_init(&diag_dci_dbgfs_mutex);

	return 0;

err:

	kfree(dci_traffic);

	kfree(dci_traffic);

	mutex_destroy(&dci_stat_mutex);

	mutex_destroy(&diag_dci_dbgfs_mutex);

}

#else

int diag_debugfs_init(void) { return 0; }