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authorSergei Shtylyov <sshtylyov@ru.mvista.com>2010-03-25 13:14:32 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-04-30 09:25:09 -0700
commit461972d8a4c94bc44f11a13046041c78a7cf18dd (patch)
treebf42a78cd77fe5f76ff8340d2931796dcee70f80 /drivers/usb
parent7917a9df73c13822cc830f0ead0fb1b44a930616 (diff)
downloadop-kernel-dev-461972d8a4c94bc44f11a13046041c78a7cf18dd.zip
op-kernel-dev-461972d8a4c94bc44f11a13046041c78a7cf18dd.tar.gz
musb_core: don't call musb_platform_exit() twice
musb_platform_exit() is called twice from musb_init_controller() iff controller initialization fails. Move the call (and the DevCtl register writes surrounding it) from musb_free() to musb_remove(). Fix mispalced and now incorrect 'goto's in musb_init_controller(). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/musb/musb_core.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 8b68f21..508fd58 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1851,10 +1851,6 @@ static void musb_free(struct musb *musb)
put_device(musb->xceiv->dev);
#endif
- musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
- musb_platform_exit(musb);
- musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
-
#ifdef CONFIG_USB_MUSB_HDRC_HCD
usb_put_hcd(musb_to_hcd(musb));
#else
@@ -2032,8 +2028,6 @@ bad_config:
musb->xceiv->state = OTG_STATE_A_IDLE;
status = usb_add_hcd(musb_to_hcd(musb), -1, 0);
- if (status)
- goto fail;
DBG(1, "%s mode, status %d, devctl %02x %c\n",
"HOST", status,
@@ -2048,8 +2042,6 @@ bad_config:
musb->xceiv->state = OTG_STATE_B_IDLE;
status = musb_gadget_setup(musb);
- if (status)
- goto fail;
DBG(1, "%s mode, status %d, dev%02x\n",
is_otg_enabled(musb) ? "OTG" : "PERIPHERAL",
@@ -2057,12 +2049,14 @@ bad_config:
musb_readb(musb->mregs, MUSB_DEVCTL));
}
+ if (status < 0)
+ goto fail2;
#ifdef CONFIG_SYSFS
status = sysfs_create_group(&musb->controller->kobj, &musb_attr_group);
-#endif
if (status)
goto fail2;
+#endif
dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n",
({char *s;
@@ -2125,7 +2119,6 @@ static int __init musb_probe(struct platform_device *pdev)
/* clobbered by use_dma=n */
orig_dma_mask = dev->dma_mask;
#endif
-
status = musb_init_controller(dev, irq, base);
if (status < 0)
iounmap(base);
@@ -2148,6 +2141,10 @@ static int __exit musb_remove(struct platform_device *pdev)
if (musb->board_mode == MUSB_HOST)
usb_remove_hcd(musb_to_hcd(musb));
#endif
+ musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
+ musb_platform_exit(musb);
+ musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
+
musb_free(musb);
iounmap(ctrl_base);
device_init_wakeup(&pdev->dev, 0);
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