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[Qemu-devel] [PATCH 1/6] usb-storage: fix NULL pointer dereference.
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH 1/6] usb-storage: fix NULL pointer dereference. |
Date: |
Thu, 15 Sep 2011 13:17:57 +0200 |
When a usb packet is canceled we need to check whenever we actually have
a scsi request in flight before we try to cancel it.
Signed-off-by: Gerd Hoffmann <address@hidden>
---
hw/usb-msd.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/hw/usb-msd.c b/hw/usb-msd.c
index e92434c..08d2d2a 100644
--- a/hw/usb-msd.c
+++ b/hw/usb-msd.c
@@ -325,7 +325,10 @@ static int usb_msd_handle_control(USBDevice *dev,
USBPacket *p,
static void usb_msd_cancel_io(USBDevice *dev, USBPacket *p)
{
MSDState *s = DO_UPCAST(MSDState, dev, dev);
- scsi_req_cancel(s->req);
+
+ if (s->req) {
+ scsi_req_cancel(s->req);
+ }
}
static int usb_msd_handle_data(USBDevice *dev, USBPacket *p)
--
1.7.1
- [Qemu-devel] [PATCH 0/6] usb patch queue, Gerd Hoffmann, 2011/09/15
- [Qemu-devel] [PATCH 1/6] usb-storage: fix NULL pointer dereference.,
Gerd Hoffmann <=
- [Qemu-devel] [PATCH 3/6] usb: fix port reset, Gerd Hoffmann, 2011/09/15
- [Qemu-devel] [PATCH 2/6] usb-hub: need to check dev->attached, Gerd Hoffmann, 2011/09/15
- [Qemu-devel] [PATCH 6/6] hw/usb-ohci: Fix OHCI_TD_T1 bit position definition, Gerd Hoffmann, 2011/09/15
- [Qemu-devel] [PATCH 5/6] usb-host: handle USBDEVFS_SETCONFIGURATION returning EBUSY, Gerd Hoffmann, 2011/09/15
- [Qemu-devel] [PATCH 4/6] usb-host: factor out code, Gerd Hoffmann, 2011/09/15