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| author | Alexander Shiyan <shc_work@mail.ru> | 2013-12-15 18:16:00 +0400 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-12-17 11:47:21 +0100 |
| commit | 21629e1a118402566dce08f26edf19954fecef32 (patch) | |
| tree | 94a2acb43dabab9f92ff0197f14d4b54d6a23a42 /drivers/net/can/mcp251x.c | |
| parent | 05780d9808f72dc28a5c3602e11a7c53aef972ad (diff) | |
| download | linux-21629e1a118402566dce08f26edf19954fecef32.tar.gz linux-21629e1a118402566dce08f26edf19954fecef32.tar.bz2 linux-21629e1a118402566dce08f26edf19954fecef32.zip | |
can: mcp251x: Convert to devm-* API
Replace existing resource handling in the driver with managed
device resource, this ensures more consistent error values and
simplifies error paths.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/mcp251x.c')
| -rw-r--r-- | drivers/net/can/mcp251x.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c index c4970c8b949a..88d3877b6277 100644 --- a/drivers/net/can/mcp251x.c +++ b/drivers/net/can/mcp251x.c @@ -1066,15 +1066,17 @@ static int mcp251x_can_probe(struct spi_device *spi) /* Allocate non-DMA buffers */ if (!mcp251x_enable_dma) { - priv->spi_tx_buf = kmalloc(SPI_TRANSFER_BUF_LEN, GFP_KERNEL); + priv->spi_tx_buf = devm_kzalloc(&spi->dev, SPI_TRANSFER_BUF_LEN, + GFP_KERNEL); if (!priv->spi_tx_buf) { ret = -ENOMEM; - goto error_tx_buf; + goto error_probe; } - priv->spi_rx_buf = kmalloc(SPI_TRANSFER_BUF_LEN, GFP_KERNEL); + priv->spi_rx_buf = devm_kzalloc(&spi->dev, SPI_TRANSFER_BUF_LEN, + GFP_KERNEL); if (!priv->spi_rx_buf) { ret = -ENOMEM; - goto error_rx_buf; + goto error_probe; } } @@ -1107,12 +1109,6 @@ static int mcp251x_can_probe(struct spi_device *spi) return ret; error_probe: - if (!mcp251x_enable_dma) - kfree(priv->spi_rx_buf); -error_rx_buf: - if (!mcp251x_enable_dma) - kfree(priv->spi_tx_buf); -error_tx_buf: if (mcp251x_enable_dma) dma_free_coherent(&spi->dev, PAGE_SIZE, priv->spi_tx_buf, priv->spi_tx_dma); @@ -1135,9 +1131,6 @@ static int mcp251x_can_remove(struct spi_device *spi) if (mcp251x_enable_dma) { dma_free_coherent(&spi->dev, PAGE_SIZE, priv->spi_tx_buf, priv->spi_tx_dma); - } else { - kfree(priv->spi_tx_buf); - kfree(priv->spi_rx_buf); } mcp251x_power_enable(priv->power, 0); |