From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
stmp_reset_block() may fail, so let's check its return value and propagate it in
the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
---
drivers/usb/phy/phy-mxs-usb.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index bd601c5..fdd33b4 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -41,11 +41,14 @@ struct mxs_phy {
#define to_mxs_phy(p) container_of((p), struct mxs_phy, phy)
-static void mxs_phy_hw_init(struct mxs_phy *mxs_phy)
+static int mxs_phy_hw_init(struct mxs_phy *mxs_phy)
{
+ int ret;
void __iomem *base = mxs_phy->phy.io_priv;
- stmp_reset_block(base + HW_USBPHY_CTRL);
+ ret = stmp_reset_block(base + HW_USBPHY_CTRL);
+ if (ret)
+ return ret;
/* Power up the PHY */
writel(0, base + HW_USBPHY_PWD);
@@ -54,6 +57,8 @@ static void mxs_phy_hw_init(struct mxs_phy *mxs_phy)
writel(BM_USBPHY_CTRL_ENUTMILEVEL2 |
BM_USBPHY_CTRL_ENUTMILEVEL3,
base + HW_USBPHY_CTRL_SET);
+
+ return 0;
}
static int mxs_phy_init(struct usb_phy *phy)
@@ -61,9 +66,7 @@ static int mxs_phy_init(struct usb_phy *phy)
struct mxs_phy *mxs_phy = to_mxs_phy(phy);
clk_prepare_enable(mxs_phy->clk);
- mxs_phy_hw_init(mxs_phy);
-
- return 0;
+ return mxs_phy_hw_init(mxs_phy);
}
static void mxs_phy_shutdown(struct usb_phy *phy)
--
1.8.1.2
--
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