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json-parser: Fix potential NULL pointer segfault 

Report from smatch:
json-parser.c:474 parse_object(62) error: potential null derefence 'dict'.
json-parser.c:553 parse_array(75) error: potential null derefence 'list'.

Label 'out' in json-parser.c can be called with list == NULL
which is passed to QDECREF.

Modify QDECREF to handle a NULL argument (inline function qobject_decref
already handles them, too).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
(cherry picked from commit 149474c934)

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Stefan Weil 2012-09-03 21:19:11 +02:00 committed by Michael Roth
parent 122b92d90a
commit 3aec24d195
1 changed files with 1 additions and 1 deletions
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2
qobject.h
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@ -71,7 +71,7 @@ typedef struct QObject {
/* High-level interface for qobject_decref() */ /* High-level interface for qobject_decref() */
#define QDECREF(obj) \ #define QDECREF(obj) \
qobject_decref(QOBJECT(obj)) qobject_decref(obj ? QOBJECT(obj) : NULL)
/* Initialize an object to default values */ /* Initialize an object to default values */
#define QOBJECT_INIT(obj, qtype_type) \ #define QOBJECT_INIT(obj, qtype_type) \