Memory allocation failures are reported by a central facility.
No need to repeat the job.
Signed-off-by: Oliver Neukum <oneu...@suse.de>
---
drivers/usb/class/cdc-acm.c | 33 +++++++++------------------------
1 file changed, 9 insertions(+), 24 deletions(-)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 8eadb38..74c605a 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1297,10 +1297,8 @@ 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) {
@@ -1339,42 +1337,32 @@ 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) {
@@ -1399,11 +1387,8 @@ 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,
--
1.8.4.5
--
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