diff options
| author | Fabio Estevam <fabio.estevam@freescale.com> | 2013-07-03 16:34:13 -0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-07-29 13:56:50 +0300 |
| commit | 51e563e3c11492748d11d3846b6d325426427a95 (patch) | |
| tree | e05f07176ed0ace3da35bb27bff73ef3fc3af262 /drivers | |
| parent | 24dc3538bcfb353741e653fab550c4bf0a8dc07d (diff) | |
| download | op-kernel-dev-51e563e3c11492748d11d3846b6d325426427a95.zip op-kernel-dev-51e563e3c11492748d11d3846b6d325426427a95.tar.gz | |
usb: phy: phy-mxs-usb: Check the return value from stmp_reset_block()
stmp_reset_block() may fail, so let's check its return value and propagate it
in the case of error.
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/phy/phy-mxs-usb.c | 13 |
1 files 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) |
