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| author | Axel Lin <axel.lin@gmail.com> | 2011-04-21 19:52:41 +0530 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-05-02 12:34:34 +0300 |
| commit | d11536e4e0e99c26d33c849b44cd279cdd67b032 (patch) | |
| tree | 8319291780b24636dd21c8cb06746ffc220adf84 /drivers | |
| parent | cdefce169594742ace29a2016dfa381755428ab5 (diff) | |
| download | kernel_samsung_espresso10-d11536e4e0e99c26d33c849b44cd279cdd67b032.zip kernel_samsung_espresso10-d11536e4e0e99c26d33c849b44cd279cdd67b032.tar.gz kernel_samsung_espresso10-d11536e4e0e99c26d33c849b44cd279cdd67b032.tar.bz2 | |
mfd: Fix usbhs_enable error handling
In the case of missing platform_data we do not hold a spin_lock,
thus we should not call spin_unlock_irqrestore in the error path.
Also simplify the error handling by separating the successful path
from error path. I think this change improves readability.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Tested-by: Steve Calfee <stevecalfee@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mfd/omap-usb-host.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index 53450f4..b3bb3ac 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -700,8 +700,7 @@ static int usbhs_enable(struct device *dev) dev_dbg(dev, "starting TI HSUSB Controller\n"); if (!pdata) { dev_dbg(dev, "missing platform_data\n"); - ret = -ENODEV; - goto end_enable; + return -ENODEV; } spin_lock_irqsave(&omap->lock, flags); @@ -915,7 +914,8 @@ static int usbhs_enable(struct device *dev) end_count: omap->count++; - goto end_enable; + spin_unlock_irqrestore(&omap->lock, flags); + return 0; err_tll: if (pdata->ehci_data->phy_reset) { @@ -931,8 +931,6 @@ err_tll: clk_disable(omap->usbhost_fs_fck); clk_disable(omap->usbhost_hs_fck); clk_disable(omap->usbhost_ick); - -end_enable: spin_unlock_irqrestore(&omap->lock, flags); return ret; } |