diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 49d4b4f1a4574771f63e6db6e2f2815d6f9a70f2..421dcbae80f1ba6c863aa761bab51a75cab7e999 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -297,11 +297,14 @@ static ssize_t iio_debugfs_read_reg(struct file *file, char __user *userbuf,
 			      size_t count, loff_t *ppos)
 {
 	struct iio_dev *indio_dev = file->private_data;
-	char buf[20];
 	unsigned val = 0;
-	ssize_t len;
 	int ret;
 
+	if (*ppos > 0)
+		return simple_read_from_buffer(userbuf, count, ppos,
+					       indio_dev->read_buf,
+					       indio_dev->read_buf_len);
+
 	ret = indio_dev->info->debugfs_reg_access(indio_dev,
 						  indio_dev->cached_reg_addr,
 						  0, &val);
@@ -310,9 +313,13 @@ static ssize_t iio_debugfs_read_reg(struct file *file, char __user *userbuf,
 		return ret;
 	}
 
-	len = snprintf(buf, sizeof(buf), "0x%X\n", val);
+	indio_dev->read_buf_len = snprintf(indio_dev->read_buf,
+					   sizeof(indio_dev->read_buf),
+					   "0x%X\n", val);
 
-	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+	return simple_read_from_buffer(userbuf, count, ppos,
+				       indio_dev->read_buf,
+				       indio_dev->read_buf_len);
 }
 
 static ssize_t iio_debugfs_write_reg(struct file *file,
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index a74cb177dc6f9cf9bcab0ed6547760b1e01b6e70..b715afa06aef0c27960362e1b511f1329acd8dda 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -569,6 +569,8 @@ struct iio_dev {
 #if defined(CONFIG_DEBUG_FS)
 	struct dentry			*debugfs_dentry;
 	unsigned			cached_reg_addr;
+	char				read_buf[20];
+	unsigned int			read_buf_len;
 #endif
 };