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Groups > linux.kernel > #1296712

[PATCH 10/28] phy: rockchip-usb: fix clock get-put mismatch

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From: Heiko Stuebner <heiko@sntech.de>

Currently the phy driver only gets the optional clock reference but
never puts it again, neither during error handling nor on remove.
Fix that by moving the clk_put to a devm-action that gets called at
the right time when all other devm actions are done.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 drivers/phy/phy-rockchip-usb.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/phy/phy-rockchip-usb.c b/drivers/phy/phy-rockchip-usb.c
index 62c43c4..e941444 100644
--- a/drivers/phy/phy-rockchip-usb.c
+++ b/drivers/phy/phy-rockchip-usb.c
@@ -90,6 +90,14 @@ static const struct phy_ops ops = {
 	.owner		= THIS_MODULE,
 };
 
+static void rockchip_usb_phy_action(void *data)
+{
+	struct rockchip_usb_phy *rk_phy = data;
+
+	if (rk_phy->clk)
+		clk_put(rk_phy->clk);
+}
+
 static int rockchip_usb_phy_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -123,6 +131,10 @@ static int rockchip_usb_phy_probe(struct platform_device *pdev)
 		rk_phy->reg_offset = reg_offset;
 		rk_phy->reg_base = grf;
 
+		err = devm_add_action(dev, rockchip_usb_phy_action, rk_phy);
+		if (err)
+			return err;
+
 		rk_phy->clk = of_clk_get_by_name(child, "phyclk");
 		if (IS_ERR(rk_phy->clk))
 			rk_phy->clk = NULL;
-- 
1.7.9.5

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Thread

[GIT PULL 00/28] phy: for 4.5 merge window Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:40 +0100
  [PATCH 21/28] phy: ti-pipe3: move clk initialization to a separate function Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 03/28] phy: rcar-gen3-usb2: add runtime ID/VBUS pin detection Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 07/28] phy-sun4i-usb: Use of_match_node to get model specific config data Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 23/28] phy: ti-pipe3: move mem resource initialization to a separate function Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 02/28] phy: rcar-gen3-usb2: change the mode to OTG on the combined channel Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 19/28] phy: berlin-usb: don't set device's driver_data Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 22/28] phy: ti-pipe3: move sysctrl initialization to a separate function Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 06/28] phy: phy-mt65xx-usb3: improve HS eye diagram Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 12/28] phy: rockchip-usb: move per-phy init into a separate function Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 05/28] phy: phy-mt65xx-usb3: fix test fail of HS receiver sensitivity Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 15/28] phy: phy_brcmstb_sata: remove duplicate definitions Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 09/28] phy: add phy-hi6220-usb Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 17/28] phy: phy_brcmstb_sata: add support for MIPS-based platforms Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 25/28] phy: ti-pipe3: use *syscon* framework API to power on/off the PHY Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 27/28] phy: omap-usb2: use omap_usb_power_off to power off the PHY during probe Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 20/28] phy: ti-pipe3: introduce local struct device* in probe Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 10/28] phy: rockchip-usb: fix clock get-put mismatch Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 24/28] phy: ti-pipe3: use ti_pipe3_power_off to power off the PHY during probe Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 01/28] phy: rcar-gen3-usb2: Add R-Car Gen3 USB2 PHY driver Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  [PATCH 14/28] phy: rockchip-usb: expose the phy-internal PLLs Kishon Vijay Abraham I <kishon@ti.com> - 2015-12-22 11:50 +0100
  Re: [GIT PULL 00/28] phy: for 4.5 merge window Greg KH <gregkh@linuxfoundation.org> - 2015-12-27 02:10 +0100

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