From f4c0e5011b96d67b87db407854ee948da708a0d9 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 21 Jan 2013 11:18:47 +0100 Subject: [PATCH] Revert "usb-storage: Drop useless null test in usb_msd_handle_data()" This reverts commit a1cbfd554e11bb8af38c2f3e1f1574bf4c563cd2. Test isn't useless. scsi_req_enqueue() may finish the request (will actually happen for requests which don't trigger any I/O such as INQUIRY), then call usb_msd_command_complete() which in turn will set s->req to NULL after unref'ing it. Signed-off-by: Gerd Hoffmann --- hw/usb/dev-storage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c index b839798..1b87352 100644 --- a/hw/usb/dev-storage.c +++ b/hw/usb/dev-storage.c @@ -427,7 +427,7 @@ static void usb_msd_handle_data(USBDevice *dev, USBPacket *p) scsi_req_print(s->req); #endif scsi_req_enqueue(s->req); - if (s->req->cmd.xfer != SCSI_XFER_NONE) { + if (s->req && s->req->cmd.xfer != SCSI_XFER_NONE) { scsi_req_continue(s->req); } break; -- 2.7.4