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authorJonathan Cameron <Jonathan.Cameron@huawei.com>2023-02-06 17:28:07 +0000
committerMichael S. Tsirkin <mst@redhat.com>2023-03-02 19:13:52 -0500
commitde8a7394f02e3fba3002242f04816cff33537dd8 (patch)
tree7cb10c1547cb52592d527427a25426705a30d7c3 /hw/mem
parent3456fedb77215dc42572ab7ec1d9ca0e324260ea (diff)
hw/mem/cxl_type3: Improve error handling in realize()
msix_init_exclusive_bar() can fail, so if it does cleanup the address space. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Gregory Price <gregory.price@memverge.com> Tested-by: Gregory Price <gregory.price@memverge.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Message-Id: <20230206172816.8201-2-Jonathan.Cameron@huawei.com> Reviewed-by: Fan Ni <fan.ni@samsung.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/mem')
-rw-r--r--hw/mem/cxl_type3.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c
index dae4fd89ca..252822bd82 100644
--- a/hw/mem/cxl_type3.c
+++ b/hw/mem/cxl_type3.c
@@ -401,7 +401,7 @@ static void ct3_realize(PCIDevice *pci_dev, Error **errp)
MemoryRegion *mr = &regs->component_registers;
uint8_t *pci_conf = pci_dev->config;
unsigned short msix_num = 1;
- int i;
+ int i, rc;
if (!cxl_setup_memory(ct3d, errp)) {
return;
@@ -438,7 +438,10 @@ static void ct3_realize(PCIDevice *pci_dev, Error **errp)
&ct3d->cxl_dstate.device_registers);
/* MSI(-X) Initailization */
- msix_init_exclusive_bar(pci_dev, msix_num, 4, NULL);
+ rc = msix_init_exclusive_bar(pci_dev, msix_num, 4, NULL);
+ if (rc) {
+ goto err_address_space_free;
+ }
for (i = 0; i < msix_num; i++) {
msix_vector_use(pci_dev, i);
}
@@ -450,6 +453,11 @@ static void ct3_realize(PCIDevice *pci_dev, Error **errp)
cxl_cstate->cdat.free_cdat_table = ct3_free_cdat_table;
cxl_cstate->cdat.private = ct3d;
cxl_doe_cdat_init(cxl_cstate, errp);
+ return;
+
+err_address_space_free:
+ address_space_destroy(&ct3d->hostmem_as);
+ return;
}
static void ct3_exit(PCIDevice *pci_dev)