diff options
| -rw-r--r-- | drivers/hwmon/max1111.c | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/drivers/hwmon/max1111.c b/drivers/hwmon/max1111.c index 14335bb..c97b78e 100644 --- a/drivers/hwmon/max1111.c +++ b/drivers/hwmon/max1111.c @@ -38,8 +38,8 @@ struct max1111_data { struct device *hwmon_dev; struct spi_message msg; struct spi_transfer xfer[2]; - uint8_t *tx_buf; - uint8_t *rx_buf; + uint8_t tx_buf[MAX1111_TX_BUF_SIZE]; + uint8_t rx_buf[MAX1111_RX_BUF_SIZE]; struct mutex drvdata_lock; /* protect msg, xfer and buffers from multiple access */ }; @@ -131,33 +131,23 @@ static const struct attribute_group max1111_attr_group = { .attrs = max1111_attributes, }; -static int setup_transfer(struct max1111_data *data) +static int __devinit setup_transfer(struct max1111_data *data) { struct spi_message *m; struct spi_transfer *x; - data->tx_buf = kmalloc(MAX1111_TX_BUF_SIZE, GFP_KERNEL); - if (!data->tx_buf) - return -ENOMEM; - - data->rx_buf = kmalloc(MAX1111_RX_BUF_SIZE, GFP_KERNEL); - if (!data->rx_buf) { - kfree(data->tx_buf); - return -ENOMEM; - } - m = &data->msg; x = &data->xfer[0]; spi_message_init(m); x->tx_buf = &data->tx_buf[0]; - x->len = 1; + x->len = MAX1111_TX_BUF_SIZE; spi_message_add_tail(x, m); x++; x->rx_buf = &data->rx_buf[0]; - x->len = 2; + x->len = MAX1111_RX_BUF_SIZE; spi_message_add_tail(x, m); return 0; @@ -192,7 +182,7 @@ static int __devinit max1111_probe(struct spi_device *spi) err = sysfs_create_group(&spi->dev.kobj, &max1111_attr_group); if (err) { dev_err(&spi->dev, "failed to create attribute group\n"); - goto err_free_all; + goto err_free_data; } data->hwmon_dev = hwmon_device_register(&spi->dev); @@ -209,9 +199,6 @@ static int __devinit max1111_probe(struct spi_device *spi) err_remove: sysfs_remove_group(&spi->dev.kobj, &max1111_attr_group); -err_free_all: - kfree(data->rx_buf); - kfree(data->tx_buf); err_free_data: kfree(data); return err; @@ -224,8 +211,6 @@ static int __devexit max1111_remove(struct spi_device *spi) hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&spi->dev.kobj, &max1111_attr_group); mutex_destroy(&data->drvdata_lock); - kfree(data->rx_buf); - kfree(data->tx_buf); kfree(data); return 0; } |