CPER failed to handle generic error records with multiple sections

The function apei_estatus_print() and apei_estatus_check() forget to move ahead
the gdata pointer when dealing with multiple generic error data sections.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index 5d41894..e6defd8 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -362,6 +362,7 @@
 		gedata_len = gdata->error_data_length;
 		apei_estatus_print_section(pfx, gdata, sec_no);
 		data_len -= gedata_len + sizeof(*gdata);
+		gdata = (void *)(gdata + 1) + gedata_len;
 		sec_no++;
 	}
 }
@@ -396,6 +397,7 @@
 		if (gedata_len > data_len - sizeof(*gdata))
 			return -EINVAL;
 		data_len -= gedata_len + sizeof(*gdata);
+		gdata = (void *)(gdata + 1) + gedata_len;
 	}
 	if (data_len)
 		return -EINVAL;