This is a note to let you know that I've just added the patch titled
soundwire: qcom: update status correctly with mask
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
soundwire-qcom-update-status-correctly-with-mask.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 6ecb7c94092657e02d290bb5f0df028b82325cbf
Author: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Date: Thu May 25 14:38:09 2023 +0100
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@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230525133812.30841-2-srinivas.kandagatla@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 2045bcdfce1ab..e3b52d5aa411e 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -405,7 +405,7 @@ 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;
}
}
