diff options
| author | Greg Kurz <groug@kaod.org> | 2019-02-07 18:28:37 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-02-17 21:54:02 +1100 |
| commit | 925969c3e28692b04ad4075022f985702bf62419 (patch) | |
| tree | d476881de3eaa848a5e02c528504d45666162ed2 | |
| parent | 27a3ea7eff2af5d8049d911802be4b13145491fc (diff) | |
spapr_pci: Fix interrupt leak in rtas_ibm_change_msi() error path
Now that IRQ allocation has been split in two (first allocate IRQ numbers,
then claim them), if the claiming fails, we must release the IRQs.
Fixes: 4fe75a8ccd80 "spapr: split the IRQ allocation sequence"
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| -rw-r--r-- | hw/ppc/spapr_pci.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 41d81f4a85..c3fb0ac884 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -393,6 +393,12 @@ static void rtas_ibm_change_msi(PowerPCCPU *cpu, sPAPRMachineState *spapr, for (i = 0; i < req_num; i++) { spapr_irq_claim(spapr, irq + i, false, &err); if (err) { + if (i) { + spapr_irq_free(spapr, irq, i); + } + if (!smc->legacy_irq_allocation) { + spapr_irq_msi_free(spapr, irq, req_num); + } error_reportf_err(err, "Can't allocate MSIs for device %x: ", config_addr); rtas_st(rets, 0, RTAS_OUT_HW_ERROR); |