linux-kernel - [PATCH 4.19 181/287] phy: qcom-qmp: fix struct clk leak on probe errors

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Message-Id: <20220613094929.356449136@linuxfoundation.org>
Date:   Mon, 13 Jun 2022 12:10:05 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vivek Gautam <vivek.gautam@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Johan Hovold <johan+linaro@...nel.org>,
        Vinod Koul <vkoul@...nel.org>
Subject: [PATCH 4.19 181/287] phy: qcom-qmp: fix struct clk leak on probe errors

From: Johan Hovold <johan+linaro@...nel.org>

commit f0a4bc38a12f5a0cc5ad68670d9480e91e6a94df upstream.

Make sure to release the pipe clock reference in case of a late probe
error (e.g. probe deferral).

Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets")
Cc: stable@...r.kernel.org      # 4.12
Cc: Vivek Gautam <vivek.gautam@...eaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
Link: https://lore.kernel.org/r/20220427063243.32576-2-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -1468,7 +1468,7 @@ int qcom_qmp_phy_create(struct device *d
 	 * all phys that don't need this.
 	 */
 	snprintf(prop_name, sizeof(prop_name), "pipe%d", id);
-	qphy->pipe_clk = of_clk_get_by_name(np, prop_name);
+	qphy->pipe_clk = devm_get_clk_from_child(dev, np, prop_name);
 	if (IS_ERR(qphy->pipe_clk)) {
 		if (qmp->cfg->type == PHY_TYPE_PCIE ||
 		    qmp->cfg->type == PHY_TYPE_USB3) {