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soundwire: qcom: update status correctly with mask 

[ Upstream commit f84d41b2a0 ]

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

Fixes: c7d49c76d1 ("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>
This commit is contained in:
Srinivas Kandagatla 2023-05-25 14:38:09 +01:00 committed by Greg Kroah-Hartman
parent cf52320a39
commit accc838fd6
1 changed files with 1 additions and 1 deletions
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2
drivers/soundwire/qcom.c
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@ -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)); status = (val >> (dev_num * SWRM_MCP_SLV_STATUS_SZ));
if ((status & SWRM_MCP_SLV_STATUS_MASK) == SDW_SLAVE_ALERT) { 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; return dev_num;
} }
} }