diff options
Diffstat (limited to 'arch/arc/kernel/smp.c')
| -rw-r--r-- | arch/arc/kernel/smp.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c index b2f2c59279a6..2d99dffed0ce 100644 --- a/arch/arc/kernel/smp.c +++ b/arch/arc/kernel/smp.c @@ -22,6 +22,7 @@ #include <linux/irqdomain.h> #include <linux/export.h> #include <linux/of_fdt.h> +#include <linux/string.h> #include <asm/mach_desc.h> #include <asm/setup.h> @@ -43,9 +44,10 @@ static int __init arc_get_cpu_map(const char *name, struct cpumask *cpumask) { unsigned long dt_root = of_get_flat_dt_root(); const char *buf; + int len; - buf = of_get_flat_dt_prop(dt_root, name, NULL); - if (!buf) + buf = of_get_flat_dt_prop(dt_root, name, &len); + if (!buf || !memchr(buf, '\0', len)) return -EINVAL; if (cpulist_parse(buf, cpumask)) |