soundwire: qcom: update status correctly with mask

[ Upstream commit f84d41b2a083b990cbdf70f3b24b6b108b9678ad ]

SoundWire device status can be incorrectly updated without
proper mask, fix this by adding a mask before updating the status.

Fixes: c7d49c76d1d5 ("soundwire: qcom: add support to new interrupts")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230525133812.30841-2-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 08934d27f709ef870bff616667db94f2ee4c7d20..a51c8a670d38ad3b0d3b1e1b9e907cee723d5cfc 100644 (file)
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -434,7 +434,7 @@ static int qcom_swrm_get_alert_slave_dev_num(struct qcom_swrm_ctrl *ctrl)
                status = (val >> (dev_num * SWRM_MCP_SLV_STATUS_SZ));
 
                if ((status & SWRM_MCP_SLV_STATUS_MASK) == SDW_SLAVE_ALERT) {
-                       ctrl->status[dev_num] = status;
+                       ctrl->status[dev_num] = status & SWRM_MCP_SLV_STATUS_MASK;
                        return dev_num;
                }
        }