[Qemu-devel] [PATCHv3 3/3] seccomp: general fixes

[Eduardo Otubo <otubo@linux.vnet.ibm.com>]

 1) On qemu-seccomp.c:255, the variable ctx was being used
uninitialized; now it's initialized with NULL and it's being checked at
the end of the function.

 2) Changed the name of the command line option from "enable" to
"sandbox" for a better understanding from user side.

Signed-off-by: Eduardo Otubo <otubo@linux.vnet.ibm.com>
---
 qemu-seccomp.c | 5 +++--
 vl.c           | 6 +++---
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/qemu-seccomp.c b/qemu-seccomp.c
index 5e85eb5..f39d636 100644
--- a/qemu-seccomp.c
+++ b/qemu-seccomp.c
@@ -252,7 +252,7 @@ seccomp_return:
 int seccomp_start(int list_type)
 {
     int rc = 0;
-    scmp_filter_ctx ctx;
+    scmp_filter_ctx ctx = NULL;
 
     switch (list_type) {
     case WHITELIST:
@@ -280,6 +280,7 @@ int seccomp_start(int list_type)
     rc = seccomp_load(ctx);
 
 seccomp_return:
-    seccomp_release(ctx);
+    if (!ctx)
+        seccomp_release(ctx);
     return rc;
 }
diff --git a/vl.c b/vl.c
index 909f685..129919d 100644
--- a/vl.c
+++ b/vl.c
@@ -323,11 +323,11 @@ static QemuOptsList qemu_rtc_opts = {
 
 static QemuOptsList qemu_sandbox_opts = {
     .name = "sandbox",
-    .implied_opt_name = "enable",
+    .implied_opt_name = "sandbox",
     .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
     .desc = {
         {
-            .name = "enable",
+            .name = "sandbox",
             .type = QEMU_OPT_BOOL,
         },{
             .name = "strict",
@@ -1036,7 +1036,7 @@ static int parse_sandbox(QemuOpts *opts, void *opaque)
 {
     const char * strict_value = NULL;
     /* FIXME: change this to true for 1.3 */
-    if (qemu_opt_get_bool(opts, "enable", false)) {
+    if (qemu_opt_get_bool(opts, "sandbox", false)) {
 #ifdef CONFIG_SECCOMP
         if (seccomp_start(WHITELIST) < 0) {
             qerror_report(ERROR_CLASS_GENERIC_ERROR,
-- 
1.8.3.1