Platform device added

1 files changed, 18 insertions, 0 deletions

diff --git a/kernel-devel/module-basics/vain_plat/vain_plat_3.c b/kernel-devel/module-basics/vain_plat/vain_plat_3.c
new file mode 100644
index 0000000..8ec839c
--- /dev/null
+++ b/kernel-devel/module-basics/vain_plat/vain_plat_3.c
@@ -0,0 +1,18 @@
+	info->base = ioremap(res->start, resource_size(res));
+	if (!info->base) {
+		dev_err(&pdev->dev, "Unable to map card MMIO\n");
+		err = -ENODEV;
+		goto err_ioremap;
+	}
+
+	platform_set_drvdata(pdev, info);
+
+	return 0;
+
+err_ioremap:
+	release_mem_region(res->start, resource_size(res));
+err_free:
+	kfree(info);
+out:
+	return err;
+}