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author | Julia Lawall <Julia.Lawall@lip6.fr> | 2013-01-07 09:51:21 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-02-13 17:27:47 -0200 |
commit | 47de201c73fbe435e7b635fa0eb812c7ce68be43 (patch) | |
tree | bd4d2cc449119ecce970b09deae49f0842368c2a /drivers | |
parent | ec34e1d579819789ecde888c1d54310824957893 (diff) | |
download | linux-stable-47de201c73fbe435e7b635fa0eb812c7ce68be43.tar.gz linux-stable-47de201c73fbe435e7b635fa0eb812c7ce68be43.tar.bz2 linux-stable-47de201c73fbe435e7b635fa0eb812c7ce68be43.zip |
[media] drivers/media/platform/soc_camera/pxa_camera.c: use devm_ functions
This patch uses various devm_ functions for data that is allocated in the
probe function of a platform driver and is only freed in the remove
function.
This also fixes a checkpatch warning, removing a space before a \n in a
string.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/media/platform/soc_camera/pxa_camera.c | 65 |
1 files changed, 15 insertions, 50 deletions
diff --git a/drivers/media/platform/soc_camera/pxa_camera.c b/drivers/media/platform/soc_camera/pxa_camera.c index 9c97f7e985e1..395e2e043615 100644 --- a/drivers/media/platform/soc_camera/pxa_camera.c +++ b/drivers/media/platform/soc_camera/pxa_camera.c @@ -1661,23 +1661,18 @@ static int pxa_camera_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); - if (!res || irq < 0) { - err = -ENODEV; - goto exit; - } + if (!res || irq < 0) + return -ENODEV; - pcdev = kzalloc(sizeof(*pcdev), GFP_KERNEL); + pcdev = devm_kzalloc(&pdev->dev, sizeof(*pcdev), GFP_KERNEL); if (!pcdev) { dev_err(&pdev->dev, "Could not allocate pcdev\n"); - err = -ENOMEM; - goto exit; + return -ENOMEM; } - pcdev->clk = clk_get(&pdev->dev, NULL); - if (IS_ERR(pcdev->clk)) { - err = PTR_ERR(pcdev->clk); - goto exit_kfree; - } + pcdev->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(pcdev->clk)) + return PTR_ERR(pcdev->clk); pcdev->res = res; @@ -1715,17 +1710,9 @@ static int pxa_camera_probe(struct platform_device *pdev) /* * Request the regions. */ - if (!request_mem_region(res->start, resource_size(res), - PXA_CAM_DRV_NAME)) { - err = -EBUSY; - goto exit_clk; - } - - base = ioremap(res->start, resource_size(res)); - if (!base) { - err = -ENOMEM; - goto exit_release; - } + base = devm_request_and_ioremap(&pdev->dev, res); + if (!base) + return -ENOMEM; pcdev->irq = irq; pcdev->base = base; @@ -1734,7 +1721,7 @@ static int pxa_camera_probe(struct platform_device *pdev) pxa_camera_dma_irq_y, pcdev); if (err < 0) { dev_err(&pdev->dev, "Can't request DMA for Y\n"); - goto exit_iounmap; + return err; } pcdev->dma_chans[0] = err; dev_dbg(&pdev->dev, "got DMA channel %d\n", pcdev->dma_chans[0]); @@ -1762,10 +1749,10 @@ static int pxa_camera_probe(struct platform_device *pdev) DRCMR(70) = pcdev->dma_chans[2] | DRCMR_MAPVLD; /* request irq */ - err = request_irq(pcdev->irq, pxa_camera_irq, 0, PXA_CAM_DRV_NAME, - pcdev); + err = devm_request_irq(&pdev->dev, pcdev->irq, pxa_camera_irq, 0, + PXA_CAM_DRV_NAME, pcdev); if (err) { - dev_err(&pdev->dev, "Camera interrupt register failed \n"); + dev_err(&pdev->dev, "Camera interrupt register failed\n"); goto exit_free_dma; } @@ -1777,27 +1764,16 @@ static int pxa_camera_probe(struct platform_device *pdev) err = soc_camera_host_register(&pcdev->soc_host); if (err) - goto exit_free_irq; + goto exit_free_dma; return 0; -exit_free_irq: - free_irq(pcdev->irq, pcdev); exit_free_dma: pxa_free_dma(pcdev->dma_chans[2]); exit_free_dma_u: pxa_free_dma(pcdev->dma_chans[1]); exit_free_dma_y: pxa_free_dma(pcdev->dma_chans[0]); -exit_iounmap: - iounmap(base); -exit_release: - release_mem_region(res->start, resource_size(res)); -exit_clk: - clk_put(pcdev->clk); -exit_kfree: - kfree(pcdev); -exit: return err; } @@ -1806,24 +1782,13 @@ static int pxa_camera_remove(struct platform_device *pdev) struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev); struct pxa_camera_dev *pcdev = container_of(soc_host, struct pxa_camera_dev, soc_host); - struct resource *res; - - clk_put(pcdev->clk); pxa_free_dma(pcdev->dma_chans[0]); pxa_free_dma(pcdev->dma_chans[1]); pxa_free_dma(pcdev->dma_chans[2]); - free_irq(pcdev->irq, pcdev); soc_camera_host_unregister(soc_host); - iounmap(pcdev->base); - - res = pcdev->res; - release_mem_region(res->start, resource_size(res)); - - kfree(pcdev); - dev_info(&pdev->dev, "PXA Camera driver unloaded\n"); return 0; |