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authorMing Lei <tom.leiming@gmail.com>2010-09-20 10:32:05 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2010-09-24 11:05:01 -0700
commitbb27bc2c1133372b54d00f3077ea4acbbf459045 (patch)
tree513f4619c3938b98b0e6ba9ad40611f7b2d0f39e /drivers/usb
parent1018b4e44f4f191c6e3c631c4eee35d0a112d32b (diff)
downloadblackbird-op-linux-bb27bc2c1133372b54d00f3077ea4acbbf459045.tar.gz
blackbird-op-linux-bb27bc2c1133372b54d00f3077ea4acbbf459045.zip
usb: musb: gadget: complete request only if data is transfered over
Complete the current request only if the data transfer is over. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Anand Gadiyar <gadiyar@ti.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/musb/musb_gadget.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index f3ee04f2e17d..fa826f9e262b 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -501,14 +501,14 @@ void musb_g_tx(struct musb *musb, u8 epnum)
request->zero = 0;
}
- /* ... or if not, then complete it. */
- musb_g_giveback(musb_ep, request, 0);
-
- request = musb_ep->desc ? next_request(musb_ep) : NULL;
- if (!request) {
- DBG(4, "%s idle now\n",
- musb_ep->end_point.name);
- return;
+ if (request->actual == request->length) {
+ musb_g_giveback(musb_ep, request, 0);
+ request = musb_ep->desc ? next_request(musb_ep) : NULL;
+ if (!request) {
+ DBG(4, "%s idle now\n",
+ musb_ep->end_point.name);
+ return;
+ }
}
}
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