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scsi: check req pointer before dereferencing it 

Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Prasad Joshi 2014-03-19 07:10:32 +05:30 committed by Paolo Bonzini
parent 7f6613cedc
commit b0f49d1387
1 changed files with 2 additions and 1 deletions
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3
hw/scsi/vmw_pvscsi.c
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@ -479,12 +479,13 @@ static void
pvscsi_command_complete(SCSIRequest *req, uint32_t status, size_t resid) pvscsi_command_complete(SCSIRequest *req, uint32_t status, size_t resid)
{ {
PVSCSIRequest *pvscsi_req = req->hba_private; PVSCSIRequest *pvscsi_req = req->hba_private;
PVSCSIState *s = pvscsi_req->dev; PVSCSIState *s;
if (!pvscsi_req) { if (!pvscsi_req) {
trace_pvscsi_command_complete_not_found(req->tag); trace_pvscsi_command_complete_not_found(req->tag);
return; return;
} }
s = pvscsi_req->dev;
if (resid) { if (resid) {
/* Short transfer. */ /* Short transfer. */