[PATCH 1/5] drivers/video/fsl-diu-fb.c: use devm_ functions

From: Damien Cassou
Date: Tue Jul 31 2012 - 12:39:39 EST


From: Damien Cassou <damien.cassou@xxxxxxx>

The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Damien Cassou <damien.cassou@xxxxxxx>

---
drivers/video/fsl-diu-fb.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index 458c006..19194c5 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -1501,8 +1501,8 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
unsigned int i;
int ret;

- data = dma_alloc_coherent(&pdev->dev, sizeof(struct fsl_diu_data),
- &dma_addr, GFP_DMA | __GFP_ZERO);
+ data = dmam_alloc_coherent(&pdev->dev, sizeof(struct fsl_diu_data),
+ &dma_addr, GFP_DMA | __GFP_ZERO);
if (!data)
return -ENOMEM;
data->dma_addr = dma_addr;
@@ -1628,9 +1628,6 @@ error:

iounmap(data->diu_reg);

- dma_free_coherent(&pdev->dev, sizeof(struct fsl_diu_data), data,
- data->dma_addr);
-
return ret;
}

@@ -1648,9 +1645,6 @@ static int fsl_diu_remove(struct platform_device *pdev)

iounmap(data->diu_reg);

- dma_free_coherent(&pdev->dev, sizeof(struct fsl_diu_data), data,
- data->dma_addr);
-
return 0;
}
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