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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2011-10-12 21:02:22 -0700 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-10-13 20:41:53 +0300 |
| commit | 482982062f1bc25ffb5383ab724d73d1a7af07cf (patch) | |
| tree | a086d74a44881a30ecdbd9d8b261bcfc55df19fe /drivers/usb | |
| parent | 034d7c13a79c67d3b52dd782d68e6c324613878a (diff) | |
| download | linux-3.10-482982062f1bc25ffb5383ab724d73d1a7af07cf.tar.gz linux-3.10-482982062f1bc25ffb5383ab724d73d1a7af07cf.tar.bz2 linux-3.10-482982062f1bc25ffb5383ab724d73d1a7af07cf.zip | |
usb: gadget: renesas_usbhs: bugfix: don't modify platform data
renesas_usbhs has default callback functions and settings.
And it tried overwrite to platform private data
if platform doesn't have them.
So, if renesas_usbhs was compiled as module,
it will be hung-up on 2nd insmod.
This patch fixup it.
Special thanks to Bastian
Reported-by: Bastian Hecht <hechtb@googlemail.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/renesas_usbhs/common.c | 24 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/common.h | 6 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/mod.c | 2 |
3 files changed, 18 insertions, 14 deletions
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index c3aef40fa9e..d2e2efaba65 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -61,8 +61,8 @@ */ #define usbhs_platform_call(priv, func, args...)\ (!(priv) ? -ENODEV : \ - !((priv)->pfunc->func) ? 0 : \ - (priv)->pfunc->func(args)) + !((priv)->pfunc.func) ? 0 : \ + (priv)->pfunc.func(args)) /* * common functions @@ -446,24 +446,28 @@ static int __devinit usbhs_probe(struct platform_device *pdev) /* * care platform info */ - priv->pfunc = &info->platform_callback; - priv->dparam = &info->driver_param; + memcpy(&priv->pfunc, + &info->platform_callback, + sizeof(struct renesas_usbhs_platform_callback)); + memcpy(&priv->dparam, + &info->driver_param, + sizeof(struct renesas_usbhs_driver_param)); /* set driver callback functions for platform */ dfunc = &info->driver_callback; dfunc->notify_hotplug = usbhsc_drvcllbck_notify_hotplug; /* set default param if platform doesn't have */ - if (!priv->dparam->pipe_type) { - priv->dparam->pipe_type = usbhsc_default_pipe_type; - priv->dparam->pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type); + if (!priv->dparam.pipe_type) { + priv->dparam.pipe_type = usbhsc_default_pipe_type; + priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_default_pipe_type); } - if (!priv->dparam->pio_dma_border) - priv->dparam->pio_dma_border = 64; /* 64byte */ + if (!priv->dparam.pio_dma_border) + priv->dparam.pio_dma_border = 64; /* 64byte */ /* FIXME */ /* runtime power control ? */ - if (priv->pfunc->get_vbus) + if (priv->pfunc.get_vbus) usbhsc_flags_set(priv, USBHSF_RUNTIME_PWCTRL); /* diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h index dc9490d1f42..8729da5c3be 100644 --- a/drivers/usb/renesas_usbhs/common.h +++ b/drivers/usb/renesas_usbhs/common.h @@ -242,8 +242,8 @@ struct usbhs_priv { void __iomem *base; unsigned int irq; - struct renesas_usbhs_platform_callback *pfunc; - struct renesas_usbhs_driver_param *dparam; + struct renesas_usbhs_platform_callback pfunc; + struct renesas_usbhs_driver_param dparam; struct delayed_work notify_hotplug_work; struct platform_device *pdev; @@ -318,7 +318,7 @@ int usbhs_set_device_speed(struct usbhs_priv *priv, int devnum, u16 upphub, * data */ struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev); -#define usbhs_get_dparam(priv, param) (priv->dparam->param) +#define usbhs_get_dparam(priv, param) (priv->dparam.param) #define usbhs_priv_to_pdev(priv) (priv->pdev) #define usbhs_priv_to_dev(priv) (&priv->pdev->dev) #define usbhs_priv_to_lock(priv) (&priv->lock) diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c index 2d3b09d0d84..053f86d7000 100644 --- a/drivers/usb/renesas_usbhs/mod.c +++ b/drivers/usb/renesas_usbhs/mod.c @@ -58,7 +58,7 @@ void usbhs_mod_autonomy_mode(struct usbhs_priv *priv) struct usbhs_mod_info *info = usbhs_priv_to_modinfo(priv); info->irq_vbus = usbhsm_autonomy_irq_vbus; - priv->pfunc->get_vbus = usbhsm_autonomy_get_vbus; + priv->pfunc.get_vbus = usbhsm_autonomy_get_vbus; usbhs_irq_callback_update(priv, NULL); } |