Commit 52af26e3 authored Nov 06, 2019 by Jeffrey Hugo Committed by Bjorn Andersson Dec 10, 2019

soc: qcom: qmi: Return EPROBE_DEFER if no address family

If a client comes up early in the boot process (perhaps was a built-in
driver), qmi_handle_init() will likely fail with a EAFNOSUPPORT since the
underlying ipc router hasn't init'd and registered the address family.
This should not be a fatal error since chances are, the router will come
up later, so recode the error to EPROBE_DEFER so that clients will retry
later.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Link: https://lore.kernel.org/r/20191106230511.1290-1-jeffrey.l.hugo@gmail.com

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

parent e42617b8

drivers/soc/qcom/qmi_interface.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -655,8 +655,12 @@ int qmi_handle_init(struct qmi_handle *qmi, size_t recv_buf_size,

		qmi->sock = qmi_sock_create(qmi, &qmi->sq);
		if (IS_ERR(qmi->sock)) {
		if (PTR_ERR(qmi->sock) == -EAFNOSUPPORT) {
		ret = -EPROBE_DEFER;
		} else {
		pr_err("failed to create QMI socket\n");
		ret = PTR_ERR(qmi->sock);
		}
		goto err_destroy_wq;
		}