ENGR00217258 mxc_vpu: return error when ioctl was not supported.

MXC_VPU will return 0 if IOCTL don't support, for user space, it think
this IOCTL success, but it's needs actually return a failed return
value.

Signed-off-by Zhang Jiejing <jiejing.zhang@freescale.com>

diff --git a/drivers/mxc/vpu/mxc_vpu.c b/drivers/mxc/vpu/mxc_vpu.c
index 03a35be0b179ec0f0a09491a99bd6034b77c93ff..c97437fb0c9e571670e41b6d3f07a52225e0015d 100644 (file)
--- a/drivers/mxc/vpu/mxc_vpu.c
+++ b/drivers/mxc/vpu/mxc_vpu.c
@@ -481,6 +481,7 @@ static long vpu_ioctl(struct file *filp, u_int cmd,
        default:
                {
                        printk(KERN_ERR "No such IOCTL, cmd is %d\n", cmd);
+                       ret = -EINVAL;
                        break;
                }
        }