zero the stack buffer before giving random garbage to the SCU

[firefly-linux-kernel-4.4.55.git] / drivers / platform / x86 / intel_scu_ipc.c

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 1b0d0d54cb0fec07e9ece9dfafc481db5808d113..b903420fa973fb0c6c6dedae218d4990f6c345c1 100644 (file)
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -162,6 +162,8 @@ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
 
        mutex_lock(&ipclock);
 
+       memset(cbuf, 0, sizeof(cbuf));
+
        if (ipcdev.pdev == NULL) {
                mutex_unlock(&ipclock);
                return -ENODEV;