diff options
| -rw-r--r-- | drivers/usb/musb/ux500.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index 8872393be94..f0ce8ac3cf4 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -46,9 +46,15 @@ void ux500_store_context(struct musb *musb) { #ifdef CONFIG_PM int i; - void __iomem *musb_base = musb->mregs; + void __iomem *musb_base; void __iomem *epio; - _musb = musb; + + if (musb != NULL) + _musb = musb; + else + return; + + musb_base = musb->mregs; if (is_host_enabled(musb)) { context.frame = musb_readw(musb_base, MUSB_FRAME); @@ -112,11 +118,17 @@ void ux500_restore_context(void) { #ifdef CONFIG_PM int i; - struct musb *musb = _musb; - void __iomem *musb_base = musb->mregs; + struct musb *musb; + void __iomem *musb_base; void __iomem *ep_target_regs; void __iomem *epio; + if (_musb != NULL) + musb = _musb; + else + return; + + musb_base = musb->mregs; if (is_host_enabled(musb)) { musb_writew(musb_base, MUSB_FRAME, context.frame); musb_writeb(musb_base, MUSB_TESTMODE, context.testmode); |