[PATCH] XEN: Make handle_vcpu_hotplug_event() to check the sscanf() return value
in [Kernel]
|
Prev: [PATCH 1/1] perf: add support for arch-dependent symbolic event names to "perf stat"
Next: [PATCH][v9 3/6] xen: Make pv drivers only work with xen_pv_domain()
From: wzt.wzt on 11 Mar 2010 22:00 It seems handle_vcpu_hotplug_event() not check the sscanf() return value. Signed-off-by: Zhitong Wang <zhitong.wangzt(a)alibaba-inc.com> --- drivers/xen/cpu_hotplug.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c index 14e2d99..99773a6 100644 --- a/drivers/xen/cpu_hotplug.c +++ b/drivers/xen/cpu_hotplug.c @@ -69,8 +69,8 @@ static void handle_vcpu_hotplug_event(struct xenbus_watch *watch, cpustr = strstr(node, "cpu/"); if (cpustr != NULL) { - sscanf(cpustr, "cpu/%u", &cpu); - vcpu_hotplug(cpu); + if (sscanf(cpustr, "cpu/%u", &cpu) == 1) + vcpu_hotplug(cpu); } } -- 1.6.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |