From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
This patch (as1298) fixes a bug in the new scatter-gather URB
facility. If an URB uses a scatterlist then it should not have the
URB_NO_INTERRUPT flag set; otherwise the system won't be notified when
the transfer completes.
Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Acked-by: David Vrabel <david.vrabel@xxxxxxx>
CC: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/core/message.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 8d874ca..adb9c8e 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -403,7 +403,7 @@ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev,
if (!io->urbs)
goto nomem;
- urb_flags = URB_NO_INTERRUPT;
+ urb_flags = 0;
if (dma)
urb_flags |= URB_NO_TRANSFER_DMA_MAP;
if (usb_pipein(pipe))
@@ -435,6 +435,7 @@ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev,
io->urbs[0]->num_sgs = io->entries;
io->entries = 1;
} else {
+ urb_flags |= URB_NO_INTERRUPT;
for_each_sg(sg, sg, io->entries, i) {
unsigned len;
--
1.6.5.5
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