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authorAxel Lin <axel.lin@ingics.com>2015-03-17 03:39:01 +0300
committerKishon Vijay Abraham I <kishon@ti.com>2015-03-26 02:36:09 +0300
commit080de5ba390c54b7504c43b36ae21911acf66b30 (patch)
tree65ae710b35ff71025efe3738119b3f9ff108fb5c /drivers/phy
parent739ae3452d0ee199b3cfe5e52214d9ccd8e358ea (diff)
downloadlinux-080de5ba390c54b7504c43b36ae21911acf66b30.tar.xz
phy: stih41x-usb: Fixup stih41x_usb_phy_power_on failure path
If stih41x_usb_phy_power_on() fails, we need to call clk_disable_unprepare() before return error. This is to ensure we have balanced clk_enable/disable calls. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy')
-rw-r--r--drivers/phy/phy-stih41x-usb.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/phy/phy-stih41x-usb.c b/drivers/phy/phy-stih41x-usb.c
index a603801293ff..c093b472b57d 100644
--- a/drivers/phy/phy-stih41x-usb.c
+++ b/drivers/phy/phy-stih41x-usb.c
@@ -87,8 +87,12 @@ static int stih41x_usb_phy_power_on(struct phy *phy)
return ret;
}
- return regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
- phy_dev->cfg->oscok, phy_dev->cfg->oscok);
+ ret = regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
+ phy_dev->cfg->oscok, phy_dev->cfg->oscok);
+ if (ret)
+ clk_disable_unprepare(phy_dev->clk);
+
+ return ret;
}
static int stih41x_usb_phy_power_off(struct phy *phy)