[Xen-devel] [PATCH] x86/mmcfg: set pci_mmcfg_config_num to 0 on error path

Fri, 21 Apr 2017 06:45:36 -0700 

One error path of acpi_parse_mcfg doesn't set pci_mmcfg_config_num to zero, fix
this.

Signed-off-by: Roger Pau Monné <[email protected]>
---
Cc: Jan Beulich <[email protected]>
Cc: Andrew Cooper <[email protected]>
---
 xen/arch/x86/x86_64/acpi_mmcfg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/x86/x86_64/acpi_mmcfg.c b/xen/arch/x86/x86_64/acpi_mmcfg.c
index a96d5e00de..650140eec5 100644
--- a/xen/arch/x86/x86_64/acpi_mmcfg.c
+++ b/xen/arch/x86/x86_64/acpi_mmcfg.c
@@ -96,6 +96,7 @@ int __init acpi_parse_mcfg(struct acpi_table_header *header)
     if (!pci_mmcfg_config) {
         printk(KERN_WARNING PREFIX
                "No memory for MCFG config tables\n");
+        pci_mmcfg_config_num = 0;
         return -ENOMEM;
     }
 
-- 
2.11.0 (Apple Git-81)


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