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.du...@arm.com>
Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
drivers/media/platform/s5p-mfc/s5p_mfc.c | 14 +++++++++-----
1 file 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 6ee620ee8cd5..1f3a7ee753db 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));
@@ -1301,6 +1303,8 @@ 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;
--
1.9.2
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