xen-devel.lists.xenproject.org archive mirror
 help / color / mirror / Atom feed
From: Matthew Daley <mattjd@gmail.com>
To: xen-devel@lists.xen.org
Cc: Dario Faggioli <dario.faggioli@citrix.com>,
	Matthew Daley <mattjd@gmail.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>,
	Ian Campbell <ian.campbell@citrix.com>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: [PATCH v2] libxl: correctly handle libxl_get_cpu_topology failure in libxl_{cpu, node}map_to_{node, cpu}map
Date: Sun, 29 Sep 2013 18:47:37 +1300	[thread overview]
Message-ID: <1380433657-16824-1-git-send-email-mattjd@gmail.com> (raw)
In-Reply-To: <1379492310.18543.54.camel@Abyss>

Initialize nr_cpus to 0 so that if it is unchanged by a failing
libxl_get_cpu_topology, libxl_cputopology_list_free still works OK
afterward.

Coverity-ID: 1055294
Coverity-ID: 1055295
Signed-off-by: Matthew Daley <mattjd@gmail.com>
---
 tools/libxl/libxl_utils.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/libxl/libxl_utils.c b/tools/libxl/libxl_utils.c
index 1927383..bb5ae31 100644
--- a/tools/libxl/libxl_utils.c
+++ b/tools/libxl/libxl_utils.c
@@ -650,7 +650,7 @@ int libxl_nodemap_to_cpumap(libxl_ctx *ctx,
                             libxl_bitmap *cpumap)
 {
     libxl_cputopology *tinfo = NULL;
-    int nr_cpus, i, rc = 0;
+    int nr_cpus = 0, i, rc = 0;
 
     tinfo = libxl_get_cpu_topology(ctx, &nr_cpus);
     if (tinfo == NULL) {
@@ -673,7 +673,7 @@ int libxl_cpumap_to_nodemap(libxl_ctx *ctx,
                             libxl_bitmap *nodemap)
 {
     libxl_cputopology *tinfo = NULL;
-    int nr_cpus, i, rc = 0;
+    int nr_cpus = 0, i, rc = 0;
 
     tinfo = libxl_get_cpu_topology(ctx, &nr_cpus);
     if (tinfo == NULL) {
-- 
1.7.10.4

  parent reply	other threads:[~2013-09-29  5:47 UTC|newest]

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-18  3:37 [PATCH 00/28] Fixes for various minor Coverity issues, volume 2 Matthew Daley
2013-09-18  3:37 ` [PATCH 01/28] gnttab: remove unused shared header lookup Matthew Daley
2013-09-19  9:12   ` Tim Deegan
2013-09-18  3:37 ` [PATCH 02/28] libxc: fix memory leak in load_p2m_frame_list error handling Matthew Daley
2013-09-25 12:57   ` Ian Campbell
2013-09-18  3:37 ` [PATCH 03/28] libxc: move munmap into the loop it's needed in in change_pte Matthew Daley
2013-09-25 11:39   ` Ian Campbell
2013-09-29  1:35     ` [PATCH] libxc: only munmap when something has actually been mapped " Matthew Daley
2013-10-03 13:39       ` Ian Campbell
2013-09-18  3:37 ` [PATCH 04/28] libxl: fix libxl_string_list_length and its only caller Matthew Daley
2013-09-25 12:58   ` Ian Campbell
2013-09-26 19:29   ` Boris Ostrovsky
2013-09-26 19:37     ` Andrew Cooper
2013-09-27  0:46       ` Matthew Daley
2013-09-18  3:37 ` [PATCH 05/28] libxl: fix dispose without init of disk in cd_insert Matthew Daley
2013-09-25 13:01   ` Ian Campbell
2013-09-18  3:37 ` [PATCH 06/28] libxl: fix leak of corename in handle_domain_death Matthew Daley
2013-09-18  3:37 ` [PATCH 07/28] libxl: fix leak of config_data in main_cpupoolcreate Matthew Daley
2013-09-18  3:37 ` [PATCH 08/28] libxl: fix leak of rune in main_remus Matthew Daley
2013-09-18  3:37 ` [PATCH 09/28] libxl: fix out-of-memory check in parse_global_config Matthew Daley
2013-09-18  3:37 ` [PATCH 10/28] libxl: only free cpupoolinfo if necessary in libxl_list_cpupool Matthew Daley
2013-09-18  8:06   ` Dario Faggioli
2013-09-18  8:58     ` Matthew Daley
2013-09-18  3:37 ` [PATCH 11/28] libxl: only put poller if already gotten in libxl_event_wait Matthew Daley
2013-09-18 12:29   ` Andrew Cooper
2013-09-18 13:06     ` Matthew Daley
2013-09-29  5:24     ` [PATCH v2] " Matthew Daley
2013-10-03 13:39       ` Ian Campbell
2013-10-11 11:12         ` [PATCH] libxl: make libxl__poller_put tolerate p==NULL libxl_event_wait Ian Jackson
2013-10-11 11:47           ` Ian Campbell
2013-10-11 14:51             ` Ian Jackson
2013-10-12 22:38           ` Matthew Daley
2013-10-14 16:49             ` Ian Jackson
2013-09-18  3:37 ` [PATCH 12/28] libxl: only free cputopology if it was allocated in libxl__get_numa_candidate Matthew Daley
2013-09-18  7:57   ` Dario Faggioli
2013-09-18  8:42     ` Matthew Daley
2013-09-18  9:10       ` Dario Faggioli
2013-09-18  9:30         ` Matthew Daley
2013-09-18 12:54           ` Dario Faggioli
2013-09-18  3:37 ` [PATCH 13/28] libxl: only free cputopology if it was allocated in libxl_{cpu, node}map_to_{node, cpu}map Matthew Daley
2013-09-18  8:18   ` Dario Faggioli
2013-09-18  8:50     ` Matthew Daley
2013-09-18  8:59       ` Dario Faggioli
2013-09-29  5:47     ` Matthew Daley [this message]
2013-09-30 10:29       ` [PATCH v2] libxl: correctly handle libxl_get_cpu_topology failure " Dario Faggioli
2013-10-03 14:03         ` Ian Campbell
2013-09-18  3:37 ` [PATCH 14/28] libxl: only free console reader if it was allocated in main_dmesg Matthew Daley
2013-09-18  3:37 ` [PATCH 15/28] libxl: fix typo in libxl__hotplug_nic error checking Matthew Daley
2013-09-18  3:37 ` [PATCH 16/28] libxl: fix file open failure check in libxl__file_reference_map Matthew Daley
2013-09-18  3:37 ` [PATCH 17/28] libxl: gettimeofday doesn't return an errno on failure Matthew Daley
2013-09-25 12:04   ` Ian Campbell
2013-09-25 23:11     ` Matthew Daley
2013-09-26  8:51       ` Ian Campbell
2013-09-18  3:37 ` [PATCH 18/28] xenstored: handle unlikely failure better in ask_parents Matthew Daley
2013-09-25 13:06   ` Ian Campbell
2013-09-25 23:17     ` Matthew Daley
2013-09-18  3:37 ` [PATCH 19/28] xenstored: fix faulty check for bad handle in domain_init Matthew Daley
2013-09-18  3:37 ` [PATCH 20/28] xenstore: check socket path length before copying it Matthew Daley
2013-09-18  3:37 ` [PATCH 21/28] mini-os: fix nodename generation in init_netfront Matthew Daley
2013-09-18 11:46   ` Samuel Thibault
2013-09-18  3:37 ` [PATCH 22/28] mini-os: fix various memory leaks in blkfront Matthew Daley
2013-09-18 11:47   ` Samuel Thibault
2013-09-18  3:37 ` [PATCH 23/28] mini-os: fix various memory leaks in {fb, kbd}front Matthew Daley
2013-09-18 11:50   ` Samuel Thibault
2013-09-18 12:39   ` Andrew Cooper
2013-09-18 13:01     ` Matthew Daley
2013-09-29  3:05     ` [PATCH] remove unnecessary null pointer checks before frees Matthew Daley
2013-09-29  3:26       ` [PATCH v2] " Matthew Daley
2013-09-30 21:15         ` Samuel Thibault
2013-10-03 13:43         ` Ian Campbell
2013-10-07 10:15           ` George Dunlap
2013-10-15  5:18           ` [PATCH v3] " Matthew Daley
2013-10-31 22:03             ` Ian Campbell
2013-09-18  3:38 ` [PATCH 24/28] mini-os: fix various memory leaks in netfront Matthew Daley
2013-09-18 11:50   ` Samuel Thibault
2013-09-18  3:38 ` [PATCH 25/28] mini-os: fix various memory leaks in pcifront Matthew Daley
2013-09-18 11:51   ` Samuel Thibault
2013-09-18  3:38 ` [PATCH 26/28] mini-os: fix various memory leaks in consfront Matthew Daley
2013-09-18 11:53   ` Samuel Thibault
2013-09-18  3:38 ` [PATCH 27/28] mini-os: fix various memory leaks in various locations Matthew Daley
2013-09-18 11:54   ` Samuel Thibault
2013-09-18  3:38 ` [PATCH 28/28] gdbsx: clear sockaddr before using it Matthew Daley
2013-09-21 15:57 ` [PATCH 00/28] Fixes for various minor Coverity issues, volume 2 Ian Campbell
2013-10-03 13:45 ` Ian Campbell
2013-10-03 13:47   ` Ian Campbell
2013-10-03 23:29   ` Matthew Daley
2013-10-04  8:00     ` Ian Campbell

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1380433657-16824-1-git-send-email-mattjd@gmail.com \
    --to=mattjd@gmail.com \
    --cc=dario.faggioli@citrix.com \
    --cc=ian.campbell@citrix.com \
    --cc=ian.jackson@eu.citrix.com \
    --cc=stefano.stabellini@eu.citrix.com \
    --cc=xen-devel@lists.xen.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).