riscv: add NULL check before calling strlen in the riscv cpu's get_desc()

[pandora-u-boot.git] / drivers / cpu / riscv_cpu.c

diff --git a/drivers/cpu/riscv_cpu.c b/drivers/cpu/riscv_cpu.c
index 4f2958a..4fff465 100644 (file)
--- a/drivers/cpu/riscv_cpu.c
+++ b/drivers/cpu/riscv_cpu.c
@@ -23,7 +23,7 @@ static int riscv_cpu_get_desc(const struct udevice *dev, char *buf, int size)
        const char *cpu;
 
        cpu = dev_read_string(dev, "compatible");
-       if (size < (strlen(cpu) + 1))
+       if (!cpu || size < (strlen(cpu) + 1))
                return -ENOSPC;
 
        strcpy(buf, cpu);