diff options
| author |   Marek Szyprowski <m.szyprowski@samsung.com> | 2016-06-08 08:33:40 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-08 14:26:26 -0300 |
| commit | e4fac74d9b20bb162627ebdb5216918f2c2baa7d (patch) | |
| tree | 357364ff3fbf2b647e4c2861e14cad4279c54260 /drivers/media/platform | |
| parent | [media] s5p-mfc: fix null pointer deference in clk_core_enable() (diff) | |
| download | linux-dev-e4fac74d9b20bb162627ebdb5216918f2c2baa7d.tar.xz linux-dev-e4fac74d9b20bb162627ebdb5216918f2c2baa7d.zip | |
[media] s5p-mfc: fix error path in driver probe
This patch fixes the error path in the driver probe, so in case of
any failure, the resources are not leaked.
Reported-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/platform')
| -rw-r--r-- | drivers/media/platform/s5p-mfc/s5p_mfc.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index f537b7408481..47e7e2012205 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -1159,7 +1159,10 @@ static int s5p_mfc_probe(struct platform_device *pdev) dev->variant = mfc_get_drv_data(pdev); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - + if (res == NULL) { + dev_err(&pdev->dev, "failed to get io resource\n"); + return -ENOENT; + } dev->regs_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(dev->regs_base)) return PTR_ERR(dev->regs_base); @@ -1167,15 +1170,14 @@ static int s5p_mfc_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (res == NULL) { dev_err(&pdev->dev, "failed to get irq resource\n"); - ret = -ENOENT; - goto err_res; + return -ENOENT; } dev->irq = res->start; ret = devm_request_irq(&pdev->dev, dev->irq, s5p_mfc_irq, 0, pdev->name, dev); if (ret) { dev_err(&pdev->dev, "Failed to install irq (%d)\n", ret); - goto err_res; + return ret; } ret = s5p_mfc_configure_dma_memory(dev); @@ -1187,7 +1189,7 @@ static int s5p_mfc_probe(struct platform_device *pdev) ret = s5p_mfc_init_pm(dev); if (ret < 0) { dev_err(&pdev->dev, "failed to get mfc clock source\n"); - return ret; + goto err_dma; } vb2_dma_contig_set_max_seg_size(dev->mem_dev_l, DMA_BIT_MASK(32)); @@ -1299,6 +1301,8 @@ err_mem_init_ctx_1: vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[0]); err_res: s5p_mfc_final_pm(dev); +err_dma: + s5p_mfc_unconfigure_dma_memory(dev); pr_debug("%s-- with error\n", __func__); return ret; |