diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/fsl_qe_udc.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index d6c5bcd40064..e8f7862acb3d 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -2604,6 +2604,10 @@ static int __devinit qe_udc_probe(struct of_device *ofdev, (unsigned long)udc_controller); /* request irq and disable DR */ udc_controller->usb_irq = irq_of_parse_and_map(np, 0); + if (!udc_controller->usb_irq) { + ret = -EINVAL; + goto err_noirq; + } ret = request_irq(udc_controller->usb_irq, qe_udc_irq, 0, driver_name, udc_controller); @@ -2625,6 +2629,8 @@ static int __devinit qe_udc_probe(struct of_device *ofdev, err6: free_irq(udc_controller->usb_irq, udc_controller); err5: + irq_dispose_mapping(udc_controller->usb_irq); +err_noirq: if (udc_controller->nullmap) { dma_unmap_single(udc_controller->gadget.dev.parent, udc_controller->nullp, 256, @@ -2648,7 +2654,7 @@ err2: iounmap(udc_controller->usb_regs); err1: kfree(udc_controller); - + udc_controller = NULL; return ret; } @@ -2710,6 +2716,7 @@ static int __devexit qe_udc_remove(struct of_device *ofdev) kfree(ep->txframe); free_irq(udc_controller->usb_irq, udc_controller); + irq_dispose_mapping(udc_controller->usb_irq); tasklet_kill(&udc_controller->rx_tasklet); |