From: Yang Yingliang <yangyingliang@xxxxxxxxxx>
[ Upstream commit d87ad457f7e1b8d2492ca5b1531eb35030a1cc8f ]
In pxa3xx_gcu_probe(), the sequence of error lable is wrong, it will
leads some resource leaked, so adjust the sequence to handle the error
correctly, and if pxa3xx_gcu_add_buffer() fails, pxa3xx_gcu_free_buffers()
need be called.
In pxa3xx_gcu_remove(), add missing clk_disable_unpreprare().
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Signed-off-by: Helge Deller <deller@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/video/fbdev/pxa3xx-gcu.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/video/fbdev/pxa3xx-gcu.c b/drivers/video/fbdev/pxa3xx-gcu.c
index 4279e13a3b58..9421d14d0eb0 100644
--- a/drivers/video/fbdev/pxa3xx-gcu.c
+++ b/drivers/video/fbdev/pxa3xx-gcu.c
@@ -650,6 +650,7 @@ static int pxa3xx_gcu_probe(struct platform_device *pdev)
for (i = 0; i < 8; i++) {
ret = pxa3xx_gcu_add_buffer(dev, priv);
if (ret) {
+ pxa3xx_gcu_free_buffers(dev, priv);
dev_err(dev, "failed to allocate DMA memory\n");
goto err_disable_clk;
}
@@ -666,15 +667,15 @@ static int pxa3xx_gcu_probe(struct platform_device *pdev)
SHARED_SIZE, irq);
return 0;
-err_free_dma:
- dma_free_coherent(dev, SHARED_SIZE,
- priv->shared, priv->shared_phys);
+err_disable_clk:
+ clk_disable_unprepare(priv->clk);
err_misc_deregister:
misc_deregister(&priv->misc_dev);
-err_disable_clk:
- clk_disable_unprepare(priv->clk);
+err_free_dma:
+ dma_free_coherent(dev, SHARED_SIZE,
+ priv->shared, priv->shared_phys);
return ret;
}
@@ -687,6 +688,7 @@ static int pxa3xx_gcu_remove(struct platform_device *pdev)
pxa3xx_gcu_wait_idle(priv);
misc_deregister(&priv->misc_dev);
dma_free_coherent(dev, SHARED_SIZE, priv->shared, priv->shared_phys);
+ clk_disable_unprepare(priv->clk);
pxa3xx_gcu_free_buffers(dev, priv);
return 0;
--
2.35.1
