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authorMarek Szyprowski <m.szyprowski@samsung.com>2016-06-08 13:33:40 +0200
committerKamil Debski <k.debski@samsung.com>2016-06-30 16:02:58 +0200
commitcbd85bd0542ba24533f5ab716f569f6e9264d866 (patch)
tree6e013379b50a9f88edd155ba15bfa5801157f9cf
parentf3d8fc548d5a2c53103b8c9db68290c6bff83346 (diff)
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>
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc.c14
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;

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