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spapr_vscsi: Error handling fixes

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We were incorrectly g_free'ing an object that isn't allocated
in one error path and failed to release it completely in another

This fixes qemu crashes with some cases of IO errors.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Benjamin Herrenschmidt
2012-06-24 01:04:45 +02:00
committed by Alexander Graf
parent 5af9873d30
commit a4d8e8daee
1 changed files with 3 additions and 1 deletions
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hw/spapr_vscsi.c
+3 -1
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@@ -800,6 +800,7 @@ static void vscsi_got_payload(VSCSIState *s, vscsi_crq *crq)
if (crq->s.IU_length > sizeof(union viosrp_iu)) {
fprintf(stderr, "VSCSI: SRP IU too long (%d bytes) !\n",
crq->s.IU_length);
vscsi_put_req(req);
return;
}
@@ -807,7 +808,8 @@ static void vscsi_got_payload(VSCSIState *s, vscsi_crq *crq)
if (spapr_tce_dma_read(&s->vdev, crq->s.IU_data_ptr, &req->iu,
crq->s.IU_length)) {
fprintf(stderr, "vscsi_got_payload: DMA read failure !\n");
g_free(req);
vscsi_put_req(req);
return;
}
memcpy(&req->crq, crq, sizeof(vscsi_crq));