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authorMing Lei <tom.leiming@gmail.com>2010-12-21 13:16:11 (GMT)
committerFelipe Balbi <balbi@ti.com>2011-02-01 08:41:29 (GMT)
commit456bb1697ec08c034449c81e03094fe26bedb9e9 (patch)
tree0a227e117c95e21a6ca528bcfefa58281af7bffe /drivers/usb/musb
parentebf53826e105f488f4f628703a108e98940d1dc5 (diff)
downloadlinux-456bb1697ec08c034449c81e03094fe26bedb9e9.tar.xz
usb: musb: fix kernel panic during s2ram(v2)
This patch fixes kernel panic during s2ram, which is caused by the below: - musb is not put into drv data of musb platform device if CONFIG_USB_MUSB_HDRC_HCD is defined - glue layer driver always get musb instance via platform_get_drvdata. The patch fixes the issue by always puting musb into drv data of musb platform device, which is doable even the platform device is a host controller device. Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb')
-rw-r--r--drivers/usb/musb/musb_core.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 07cf394..12b515b 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -128,12 +128,7 @@ MODULE_ALIAS("platform:" MUSB_DRIVER_NAME);
static inline struct musb *dev_to_musb(struct device *dev)
{
-#ifdef CONFIG_USB_MUSB_HDRC_HCD
- /* usbcore insists dev->driver_data is a "struct hcd *" */
- return hcd_to_musb(dev_get_drvdata(dev));
-#else
return dev_get_drvdata(dev);
-#endif
}
/*-------------------------------------------------------------------------*/
@@ -1876,10 +1871,9 @@ allocate_instance(struct device *dev,
musb = kzalloc(sizeof *musb, GFP_KERNEL);
if (!musb)
return NULL;
- dev_set_drvdata(dev, musb);
#endif
-
+ dev_set_drvdata(dev, musb);
musb->mregs = mbase;
musb->ctrl_base = mbase;
musb->nIrq = -ENODEV;