From: 黄涛 <huangtao@rock-chips.com>
Date: Mon, 19 Dec 2011 02:07:34 +0000 (+0800)
Subject: gpu: ion: fix printk when alloc failed
X-Git-Tag: firefly_0821_release~9710^2~11
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=50d910ace60cc77edcea2daf06cbe04f5d3c5ea8;p=firefly-linux-kernel-4.4.55.git

gpu: ion: fix printk when alloc failed
---

diff --git a/drivers/gpu/ion/ion.c b/drivers/gpu/ion/ion.c
index 16580a8f6ec2..16dedc19b118 100755
--- a/drivers/gpu/ion/ion.c
+++ b/drivers/gpu/ion/ion.c
@@ -983,8 +983,12 @@ static long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 					     data.flags);
 		if (copy_to_user((void __user *)arg, &data, sizeof(data)))
 			return -EFAULT;
-		printk("%s: alloc 0x%x bytes, phy addr is 0x%lx\n",
-			__func__, data.len, data.handle->buffer->priv_phys);
+		if (IS_ERR_OR_NULL(data.handle)) {
+			printk("%s: alloc 0x%x bytes failed\n", __func__, data.len);
+		} else {
+			printk("%s: alloc 0x%x bytes, phy addr is 0x%lx\n",
+				__func__, data.len, data.handle->buffer->priv_phys);
+		}
 		break;
 	}
 	case ION_IOC_FREE: