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soc: qcom: smem: fix hwspinlock resource leak in probe error paths

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[ Upstream commit dc5db35073a19f6d3c30bea367b551c1a784ef8f ]

The hwspinlock acquired via hwspin_lock_request_specific() is not
released on several error paths. This results in resource leakage
when probe fails.

Switch to devm_hwspin_lock_request_specific() to automatically
handle cleanup on probe failure. Remove the manual hwspin_lock_free()
in qcom_smem_remove() as devm handles it automatically.

Fixes: 20bb6c9de1 ("soc: qcom: smem: map only partitions used by local HOST")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251029022733.255-1-vulab@iscas.ac.cn
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Haotian Zhang
2025-10-29 10:27:33 +08:00
committed by Greg Kroah-Hartman
parent 6135d225cc
commit ea954e50d3
1 changed files with 1 additions and 2 deletions
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3
drivers/soc/qcom/smem.c
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@@ -1164,7 +1164,7 @@ static int qcom_smem_probe(struct platform_device *pdev)
return hwlock_id;
}
smem->hwlock = hwspin_lock_request_specific(hwlock_id);
smem->hwlock = devm_hwspin_lock_request_specific(&pdev->dev, hwlock_id);
if (!smem->hwlock)
return -ENXIO;
@@ -1217,7 +1217,6 @@ static int qcom_smem_remove(struct platform_device *pdev)
{
platform_device_unregister(__smem->socinfo);
hwspin_lock_free(__smem->hwlock);
__smem = NULL;
return 0;