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[Qemu-devel] [PATCH 06/25] usb: handle dev == NULL in usb_handle_packet(
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH 06/25] usb: handle dev == NULL in usb_handle_packet() |
Date: |
Mon, 23 Jan 2012 15:54:52 +0100 |
Allow passing in a NULL pointer, return USB_RET_NODEV in that case.
Removes the burden to to a NULL pointer check from the callers.
Signed-off-by: Gerd Hoffmann <address@hidden>
---
hw/usb.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/hw/usb.c b/hw/usb.c
index 5482c92..80afd99 100644
--- a/hw/usb.c
+++ b/hw/usb.c
@@ -322,6 +322,10 @@ int usb_handle_packet(USBDevice *dev, USBPacket *p)
{
int ret;
+ if (dev == NULL) {
+ return USB_RET_NODEV;
+ }
+
assert(p->owner == NULL);
ret = dev->info->handle_packet(dev, p);
if (ret == USB_RET_ASYNC) {
--
1.7.1
- [Qemu-devel] [PATCH 04/25] usb: add usb_find_device(), (continued)
- [Qemu-devel] [PATCH 04/25] usb: add usb_find_device(), Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 02/25] usb: kill USB_MSG_RESET, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 07/25] usb-uhci: switch to usb_find_device(), Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 13/25] usb: fold usb_generic_handle_packet into usb_handle_packet, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 03/25] usb: kill usb_send_msg, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 11/25] usb-xhci: switch to usb_find_device(), Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 05/25] usb-hub: implement find_device, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 12/25] usb: kill handle_packet callback, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 09/25] usb-ohci: switch to usb_find_device(), Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 14/25] usb: USBPacket: add status, rename owner -> ep, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 06/25] usb: handle dev == NULL in usb_handle_packet(),
Gerd Hoffmann <=
- [Qemu-devel] [PATCH 20/25] xhci: signal low- and fullspeed support, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 08/25] usb-ehci: switch to usb_find_device(), Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 10/25] usb-musb: switch to usb_find_device(), Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 22/25] xhci: stop on errors, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 23/25] xhci: kill port arg from xhci_setup_packet, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 19/25] usb: add USBBusOps->wakeup_endpoint, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 18/25] usb: pass USBEndpoint to usb_wakeup, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 17/25] usb: maintain async packet list per endpoint, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 24/25] xhci: remote wakeup support, Gerd Hoffmann, 2012/01/23
- [Qemu-devel] [PATCH 21/25] xhci: add trb type name lookup support., Gerd Hoffmann, 2012/01/23