Hello.
On 04.11.2011 17:40, Sebastian Andrzej Siewior wrote:
This patch adds sg support to dummy_hcd. It seems that uas is not able
to work with a hcd which does not support sg only based transfers.
Signed-off-by: Sebastian Andrzej Siewior<bigeasy@xxxxxxxxxxxxx>
---
drivers/usb/gadget/dummy_hcd.c | 80 ++++++++++++++++++++++++++++++++++++---
1 files changed, 73 insertions(+), 7 deletions(-)
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 670ee24..92c04f6 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
[...]
@@ -1078,9 +1079,10 @@ static int dummy_urb_enqueue (
unsigned long flags;
int rc;
- if (!urb->transfer_buffer&& urb->transfer_buffer_length)
- return -EINVAL;
-
+ if (!urb->transfer_buffer&& urb->transfer_buffer_length) {
+ if (!urb->num_sgs)
This seems over-indented. And why not just do all this in a single *if*?
+ return -EINVAL;
+ }
urbp = kmalloc (sizeof *urbp, mem_flags);
if (!urbp)
return -ENOMEM;
WBR, Sergei
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