From: Zhang Jiejing <jiejing.zhang@freescale.com>
Date: Mon, 16 Jul 2012 01:51:47 +0000 (+0800)
Subject: ENGR00217258 mxc_vpu: return error when ioctl was not supported.
X-Git-Tag: v3.0.35-fsl_4.1.0~917
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=785431734b2384cd82f14a757c61b98c2cf9905d;p=karo-tx-linux.git

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 03a35be0b179..c97437fb0c9e 100644
--- 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;
 		}
 	}