diff options
| author | Yi Min Zhao <zyimin@linux.vnet.ibm.com> | 2016-04-26 19:26:32 +0800 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2016-05-17 15:50:29 +0200 |
| commit | bac45d5147fbe832428944610c70484b18539292 (patch) | |
| tree | e2c87df29ad3edad3eec01b3910b24b59d20d21b /hw | |
| parent | 3f6ec642ae84cde9375bd4e624ab4e3fe23f60b9 (diff) | |
s390x/pci: fix reg_irqs()
In reg_irqs(), present code assumes that map_indicator() always issues
successfully. Let's check it and return the error to caller in order to
inform guest.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/s390x/s390-pci-inst.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c index b28e7d14f8..90d9fda77c 100644 --- a/hw/s390x/s390-pci-inst.c +++ b/hw/s390x/s390-pci-inst.c @@ -634,8 +634,15 @@ static int reg_irqs(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib) len = BITS_TO_LONGS(FIB_DATA_NOI(ldl_p(&fib.data))) * sizeof(unsigned long); pbdev->indicator = get_indicator(ldq_p(&fib.aibv), len); - map_indicator(&pbdev->routes.adapter, pbdev->summary_ind); - map_indicator(&pbdev->routes.adapter, pbdev->indicator); + ret = map_indicator(&pbdev->routes.adapter, pbdev->summary_ind); + if (ret) { + goto out; + } + + ret = map_indicator(&pbdev->routes.adapter, pbdev->indicator); + if (ret) { + goto out; + } pbdev->routes.adapter.summary_addr = ldq_p(&fib.aisb); pbdev->routes.adapter.summary_offset = FIB_DATA_AISBO(ldl_p(&fib.data)); @@ -647,6 +654,12 @@ static int reg_irqs(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib) DPRINTF("reg_irqs adapter id %d\n", pbdev->routes.adapter.adapter_id); return 0; +out: + release_indicator(&pbdev->routes.adapter, pbdev->summary_ind); + release_indicator(&pbdev->routes.adapter, pbdev->indicator); + pbdev->summary_ind = NULL; + pbdev->indicator = NULL; + return ret; } static int dereg_irqs(S390PCIBusDevice *pbdev) |