In case of error, the function devm_kzalloc() and devm_ioremap()
returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return
value check should be replaced with NULL test.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Archit Taneja <archit@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
        int ret, irq, func;
 
        dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
-       if (IS_ERR(dev))
-               return PTR_ERR(dev);
+       if (!dev)
+               return -ENOMEM;
 
        spin_lock_init(&dev->lock);
 
         * registers based on the sub block base addresses
         */
        dev->base = devm_ioremap(&pdev->dev, res->start, SZ_32K);
-       if (IS_ERR(dev->base)) {
-               ret = PTR_ERR(dev->base);
+       if (!dev->base) {
+               ret = -ENOMEM;
                goto v4l2_dev_unreg;
        }