driver/rtc/class.c: check the error after rtc_read_time()

[cascardo/linux.git] / drivers / rtc / rtc-isl12022.c

diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c
index 03b8911..aa55f08 100644 (file)
--- a/drivers/rtc/rtc-isl12022.c
+++ b/drivers/rtc/rtc-isl12022.c
@@ -17,6 +17,8 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/err.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #define DRV_VERSION "0.1"
 
@@ -271,6 +273,13 @@ static int isl12022_probe(struct i2c_client *client,
        return PTR_ERR_OR_ZERO(isl12022->rtc);
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id isl12022_dt_match[] = {
+       { .compatible = "isl,isl12022" },
+       { },
+};
+#endif
+
 static const struct i2c_device_id isl12022_id[] = {
        { "isl12022", 0 },
        { }
@@ -280,6 +289,9 @@ MODULE_DEVICE_TABLE(i2c, isl12022_id);
 static struct i2c_driver isl12022_driver = {
        .driver         = {
                .name   = "rtc-isl12022",
+#ifdef CONFIG_OF
+               .of_match_table = of_match_ptr(isl12022_dt_match),
+#endif
        },
        .probe          = isl12022_probe,
        .id_table       = isl12022_id,