[libvirt] PATCH: Fix free of uninitialized data on PCI device failure
The pci.c file was freeing a variable that was not initialized in its
failure path. This causes a crash if the user specifies a PCI device
for a guest which does not exist
commit 87f584fdd688865b4ea7f54d1b631f546535d8c2
Author: Daniel P. Berrange <berrange(a)redhat.com>
Date: Thu Jul 16 13:23:32 2009 +0100
Fix free of unitialized data upon PCI open fail
diff --git a/src/pci.c b/src/pci.c
index 3ffa0aa..4030a14 100644
--- a/src/pci.c
+++ b/src/pci.c
@@ -834,10 +834,8 @@ pciReadDeviceID(pciDevice *dev, const char *id_name)
dev->name, id_name);
/* ID string is '0xNNNN\n' ... i.e. 7 bytes */
- if (virFileReadAll(path, 7, &id_str) < 7) {
- VIR_FREE(id_str);
+ if (virFileReadAll(path, 7, &id_str) < 0)
return NULL;
- }
/* Check for 0x suffix */
if (id_str[0] != '0' || id_str[1] != 'x') {
--
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