aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb/gadget
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/function/f_mass_storage.c20
-rw-r--r--drivers/usb/gadget/function/f_ncm.c10
-rw-r--r--drivers/usb/gadget/udc/net2272.c2
3 files changed, 28 insertions, 4 deletions
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 6c8aba574e6e..9fee28a35a5e 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -574,21 +574,37 @@ static int start_transfer(struct fsg_dev *fsg, struct usb_ep *ep,
static bool start_in_transfer(struct fsg_common *common, struct fsg_buffhd *bh)
{
+ int rc;
+
if (!fsg_is_set(common))
return false;
bh->state = BUF_STATE_SENDING;
- if (start_transfer(common->fsg, common->fsg->bulk_in, bh->inreq))
+ rc = start_transfer(common->fsg, common->fsg->bulk_in, bh->inreq);
+ if (rc) {
bh->state = BUF_STATE_EMPTY;
+ if (rc == -ESHUTDOWN) {
+ common->running = 0;
+ return false;
+ }
+ }
return true;
}
static bool start_out_transfer(struct fsg_common *common, struct fsg_buffhd *bh)
{
+ int rc;
+
if (!fsg_is_set(common))
return false;
bh->state = BUF_STATE_RECEIVING;
- if (start_transfer(common->fsg, common->fsg->bulk_out, bh->outreq))
+ rc = start_transfer(common->fsg, common->fsg->bulk_out, bh->outreq);
+ if (rc) {
bh->state = BUF_STATE_FULL;
+ if (rc == -ESHUTDOWN) {
+ common->running = 0;
+ return false;
+ }
+ }
return true;
}
diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c
index 2ef2464a5043..b8597d4a4864 100644
--- a/drivers/usb/gadget/function/f_ncm.c
+++ b/drivers/usb/gadget/function/f_ncm.c
@@ -1349,7 +1349,15 @@ parse_ntb:
"Parsed NTB with %d frames\n", dgram_counter);
to_process -= block_len;
- if (to_process != 0) {
+
+ /*
+ * Windows NCM driver avoids USB ZLPs by adding a 1-byte
+ * zero pad as needed.
+ */
+ if (to_process == 1 &&
+ (*(unsigned char *)(ntb_ptr + block_len) == 0x00)) {
+ to_process--;
+ } else if (to_process > 0) {
ntb_ptr = (unsigned char *)(ntb_ptr + block_len);
goto parse_ntb;
}
diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c
index 5980540a8fff..de7757260d6c 100644
--- a/drivers/usb/gadget/udc/net2272.c
+++ b/drivers/usb/gadget/udc/net2272.c
@@ -2632,7 +2632,7 @@ net2272_plat_probe(struct platform_device *pdev)
goto err_req;
}
- ret = net2272_probe_fin(dev, IRQF_TRIGGER_LOW);
+ ret = net2272_probe_fin(dev, irqflags);
if (ret)
goto err_io;