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Commit 00f02017 authored by Hardik Arya's avatar Hardik Arya Committed by Gerrit - the friendly Code Review server
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diag: Add debug logs while diag deinit 



Add debug logs while copying deinit type
packet to userspcae for catching diag deinit
stuck issues.

Change-Id: I29eac15cb2a367ea711a927f29ef360c849776e9
Signed-off-by: default avatarHardik Arya <harya@codeaurora.org>
parent 0c245404

drivers/char/diag/diagchar_core.c

+6 −0
Original line number Diff line number Diff line
@@ -2063,6 +2063,9 @@ static int diag_ioctl_lsm_deinit(void) 
	if (!(driver->data_ready[i] & DEINIT_TYPE)) {

		driver->data_ready[i] |= DEINIT_TYPE;

		atomic_inc(&driver->data_ready_notif[i]);

		DIAG_LOG(DIAG_DEBUG_USERSPACE,

			"Setting DEINIT_TYPE for pid: %d\n",

			current->tgid);

	}

	mutex_unlock(&driver->diagchar_mutex);

	wake_up_interruptible(&driver->wait_q);
@@ -3757,6 +3760,9 @@ static ssize_t diagchar_read(struct file *file, char __user *buf, size_t count, 
		COPY_USER_SPACE_OR_ERR(buf, data_type, 4);

		if (ret == -EFAULT)

			goto exit;

		DIAG_LOG(DIAG_DEBUG_USERSPACE,

			"Copied DEINIT_TYPE pkt current->tgid: %d\n",

			current->tgid);

		driver->data_ready[index] ^= DEINIT_TYPE;

		atomic_dec(&driver->data_ready_notif[index]);

		mutex_unlock(&driver->diagchar_mutex);