diff options
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 33 |
1 files changed, 9 insertions, 24 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index a417b738824f..e78720b59d67 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1298,10 +1298,8 @@ made_compressed_probe: dev_dbg(&intf->dev, "interfaces are valid\n"); acm = kzalloc(sizeof(struct acm), GFP_KERNEL); - if (acm == NULL) { - dev_err(&intf->dev, "out of memory (acm kzalloc)\n"); + if (acm == NULL) goto alloc_fail; - } minor = acm_alloc_minor(acm); if (minor == ACM_TTY_MINORS) { @@ -1340,42 +1338,32 @@ made_compressed_probe: acm->quirks = quirks; buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); - if (!buf) { - dev_err(&intf->dev, "out of memory (ctrl buffer alloc)\n"); + if (!buf) goto alloc_fail2; - } acm->ctrl_buffer = buf; - if (acm_write_buffers_alloc(acm) < 0) { - dev_err(&intf->dev, "out of memory (write buffer alloc)\n"); + if (acm_write_buffers_alloc(acm) < 0) goto alloc_fail4; - } acm->ctrlurb = usb_alloc_urb(0, GFP_KERNEL); - if (!acm->ctrlurb) { - dev_err(&intf->dev, "out of memory (ctrlurb kmalloc)\n"); + if (!acm->ctrlurb) goto alloc_fail5; - } + for (i = 0; i < num_rx_buf; i++) { struct acm_rb *rb = &(acm->read_buffers[i]); struct urb *urb; rb->base = usb_alloc_coherent(acm->dev, readsize, GFP_KERNEL, &rb->dma); - if (!rb->base) { - dev_err(&intf->dev, "out of memory " - "(read bufs usb_alloc_coherent)\n"); + if (!rb->base) goto alloc_fail6; - } rb->index = i; rb->instance = acm; urb = usb_alloc_urb(0, GFP_KERNEL); - if (!urb) { - dev_err(&intf->dev, - "out of memory (read urbs usb_alloc_urb)\n"); + if (!urb) goto alloc_fail6; - } + urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; urb->transfer_dma = rb->dma; if (acm->is_int_ep) { @@ -1400,11 +1388,8 @@ made_compressed_probe: struct acm_wb *snd = &(acm->wb[i]); snd->urb = usb_alloc_urb(0, GFP_KERNEL); - if (snd->urb == NULL) { - dev_err(&intf->dev, - "out of memory (write urbs usb_alloc_urb)\n"); + if (snd->urb == NULL) goto alloc_fail7; - } if (usb_endpoint_xfer_int(epwrite)) usb_fill_int_urb(snd->urb, usb_dev, |