[PATCH] powerpc/pasemi: Fix PCI device reference leak on error path

[Miaoqian Lin]

Fix iob_pdev reference leak in pasemi_dma_init() when dma_pdev
allocation fails. Ensure pci_dev_put(iob_pdev) is called on
both success and error paths.

Fixes: 8ee9d8577935 ("pasemi: DMA engine management library")
Signed-off-by: Miaoqian Lin <linmq...@gmail.com>
---
 arch/powerpc/platforms/pasemi/dma_lib.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/pasemi/dma_lib.c 
b/arch/powerpc/platforms/pasemi/dma_lib.c
index 1be1f18f6f09..0ba05c39c276 100644
--- a/arch/powerpc/platforms/pasemi/dma_lib.c
+++ b/arch/powerpc/platforms/pasemi/dma_lib.c
@@ -530,7 +530,7 @@ int pasemi_dma_init(void)
                BUG();
                pr_warn("Can't find DMA controller\n");
                err = -ENODEV;
-               goto out;
+               goto out_put_iob;
        }
        dma_regs = map_onedev(dma_pdev, 0);
        base_hw_irq = virq_to_hw(dma_pdev->irq);
@@ -617,5 +617,9 @@ int pasemi_dma_init(void)
 out:
        spin_unlock(&init_lock);
        return err;
+
+out_put_iob:
+       pci_dev_put(iob_pdev);
+       goto out;
 }
 EXPORT_SYMBOL(pasemi_dma_init);
-- 
2.35.1