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Commit 9f899eaf authored by tharun kumar's avatar tharun kumar Committed by Tharun Kumar Merugu
Browse files

msm: ADSPRPC: avoid sending new requests to dsp while device_release 



When fastrpc_device_release is in progress, don't send any new
requets to DSP

Change-Id: I4d9e2f06485cde6dbd3d7aef402e3e853e0be998
Acked-by: default avatarChenna Kesava Raju <chennak@qti.qualcomm.com>
Signed-off-by: default avatarTharun Kumar Merugu <mtharu@codeaurora.org>
parent 1996ec83

drivers/char/adsprpc.c

+12 −0
Original line number Diff line number Diff line
@@ -284,6 +284,7 @@ struct fastrpc_file { 
	int cid;

	int ssrcount;

	int pd;

	int file_close;

	struct fastrpc_apps *apps;

	struct fastrpc_perf perf;

	struct dentry *debugfs_file;
@@ -1888,6 +1889,9 @@ static int fastrpc_file_free(struct fastrpc_file *fl) 
		return 0;

	}

	(void)fastrpc_release_current_dsp_process(fl);

	spin_lock(&fl->hlock);

	fl->file_close = 1;

	spin_unlock(&fl->hlock);

	fastrpc_context_list_dtor(fl);

	fastrpc_buf_list_free(fl);

	hlist_for_each_entry_safe(map, n, &fl->maps, hn) {
@@ -2258,6 +2262,14 @@ static long fastrpc_device_ioctl(struct file *file, unsigned int ioctl_num, 
	p.inv.fds = 0;

	p.inv.attrs = 0;

	p.inv.crc = NULL;

	spin_lock(&fl->hlock);

	if (fl->file_close == 1) {

		err = EBADF;

		pr_warn("ADSPRPC: fastrpc_device_release is happening, So not sending any new requests to DSP");

		spin_unlock(&fl->hlock);

		goto bail;

	}

	spin_unlock(&fl->hlock);



	switch (ioctl_num) {

	case FASTRPC_IOCTL_INVOKE: