From: SF Markus Elfring <elfring@users.sourceforge.net>
To: x86@kernel.org, "Andi Kleen" <ak@linux.intel.com>,
"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
"Borislav Petkov" <bp@suse.de>, "H. Peter Anvin" <hpa@zytor.com>,
"Ingo Molnar" <mingo@redhat.com>, "Jiri Olsa" <jolsa@redhat.com>,
"Jürgen Groß" <jgross@suse.com>,
"Len Brown" <len.brown@intel.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Thomas Gleixner" <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org,
Julia Lawall <julia.lawall@lip6.fr>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: [PATCH 2/4] x86/smpboot: Return directly after a failed kmalloc_array()
Date: Mon, 5 Sep 2016 10:11:21 +0200 [thread overview]
Message-ID: <ce4252db-9b91-d29a-8b45-d3996dd818ff@users.sourceforge.net> (raw)
In-Reply-To: <6dacb257-d15c-8ea1-9dd4-0440a5ecfd1d@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 5 Sep 2016 08:48:32 +0200
Return directly after a memory allocation failed at the beginning.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
arch/x86/kernel/smpboot.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 36cf27e..2ce06ef 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -352,6 +352,8 @@ static void __init smp_init_package_map(void)
physical_to_logical_pkg = kmalloc_array(max_physical_pkg_id,
sizeof(*physical_to_logical_pkg),
GFP_KERNEL);
+ if (!physical_to_logical_pkg)
+ return;
memset(physical_to_logical_pkg,
0xff,
sizeof(*physical_to_logical_pkg) * max_physical_pkg_id);
--
2.9.3
next prev parent reply other threads:[~2016-09-05 8:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-05 8:05 [PATCH 0/4] x86/smpboot: Fine-tuning for smp_init_package_map() SF Markus Elfring
2016-09-05 8:10 ` [PATCH 1/4] x86/smpboot: Use kmalloc_array() in smp_init_package_map() SF Markus Elfring
2016-09-05 9:19 ` Thomas Gleixner
2016-09-05 8:11 ` SF Markus Elfring [this message]
2016-09-05 8:12 ` [PATCH 3/4] x86/smpboot: Replace one kzalloc() call by kcalloc() SF Markus Elfring
2016-09-05 9:26 ` Paolo Bonzini
2016-09-05 9:29 ` Paolo Bonzini
2016-09-05 8:13 ` [PATCH 4/4] x86/smpboot: Return directly after a failed kcalloc() SF Markus Elfring
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