[PATCH 3/9] HSI: cmt_speech: Return error if HSI port not configured
From: Sebastian Reichel <sre@kernel.org>
Date: 2015-03-02 04:40:01
Also in:
linux-omap, lkml
Subsystem:
hsi subsystem, the rest · Maintainers:
Sebastian Reichel, Linus Torvalds
From: Kai Vehmanen <redacted> If HSI port is not configured by ssi_protocol, return an error from char device open. Signed-off-by: Kai Vehmanen <redacted> Acked-by: Carlos Chinea <redacted> Signed-off-by: Joni Lapilainen <redacted> Signed-off-by: Sebastian Reichel <sre@kernel.org> --- drivers/hsi/clients/cmt_speech.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/hsi/clients/cmt_speech.c b/drivers/hsi/clients/cmt_speech.c
index 389eafb..56846c9 100644
--- a/drivers/hsi/clients/cmt_speech.c
+++ b/drivers/hsi/clients/cmt_speech.c@@ -1037,6 +1037,13 @@ static int cs_hsi_start(struct cs_hsi_iface **hi, struct hsi_client *cl, dev_err(&cl->device, "Could not get HSI master client\n"); goto leave4; } + if (!ssip_slave_running(hsi_if->master)) { + err = -ENODEV; + dev_err(&cl->device, + "HSI port not initialized\n"); + goto leave4; + } + hsi_if->iface_state = CS_STATE_OPENED; local_bh_disable(); cs_hsi_read_on_control(hsi_if);
--
2.1.4