V4L/DVB (11778): Siano: smsusb - lost buffers bug fix
This patch fixes a problem were protocol buffers
have been lost during USB disconnect events.
Signed-off-by: Uri Shkolnik <uris@siano-ms.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/siano/smsusb.c b/drivers/media/dvb/siano/smsusb.c
index 1bcd0ef..4fa38bd 100644
--- a/drivers/media/dvb/siano/smsusb.c
+++ b/drivers/media/dvb/siano/smsusb.c
@@ -65,14 +65,14 @@
struct smsusb_urb_t *surb = (struct smsusb_urb_t *) urb->context;
struct smsusb_device_t *dev = surb->dev;
- if (urb->status < 0) {
- sms_err("error, urb status %d, %d bytes",
+ if (urb->status == -ESHUTDOWN) {
+ sms_err("error, urb status %d (-ESHUTDOWN), %d bytes",
urb->status, urb->actual_length);
return;
}
- if (urb->actual_length > 0) {
- struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *) surb->cb->p;
+ if ((urb->actual_length > 0) && (urb->status == 0)) {
+ struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *)surb->cb->p;
smsendian_handle_message_header(phdr);
if (urb->actual_length >= phdr->msgLength) {
@@ -111,7 +111,10 @@
"msglen %d actual %d",
phdr->msgLength, urb->actual_length);
}
- }
+ } else
+ sms_err("error, urb status %d, %d bytes",
+ urb->status, urb->actual_length);
+
exit_and_resubmit:
smsusb_submit_urb(dev, surb);