From: Zhang Qilong zhangqilong3@huawei.com
[ Upstream commit 7968c7c79d3be8987feb8021f0c46e6866831408 ]
In the error handling, we should goto the probe_exit_candev to free ndev to prevent memory leak.
Fixes: dabf54dd1c63 ("can: ti_hecc: Convert TI HECC driver to DT only driver") Signed-off-by: Zhang Qilong zhangqilong3@huawei.com Link: https://lore.kernel.org/r/20201114111708.3465543-1-zhangqilong3@huawei.com Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/ti_hecc.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 228ecd45ca6c1..0e8b5df7e9830 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -887,7 +887,8 @@ static int ti_hecc_probe(struct platform_device *pdev) priv->base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(priv->base)) { dev_err(&pdev->dev, "hecc ioremap failed\n"); - return PTR_ERR(priv->base); + err = PTR_ERR(priv->base); + goto probe_exit_candev; }
/* handle hecc-ram memory */ @@ -900,7 +901,8 @@ static int ti_hecc_probe(struct platform_device *pdev) priv->hecc_ram = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(priv->hecc_ram)) { dev_err(&pdev->dev, "hecc-ram ioremap failed\n"); - return PTR_ERR(priv->hecc_ram); + err = PTR_ERR(priv->hecc_ram); + goto probe_exit_candev; }
/* handle mbx memory */ @@ -913,13 +915,14 @@ static int ti_hecc_probe(struct platform_device *pdev) priv->mbx = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(priv->mbx)) { dev_err(&pdev->dev, "mbx ioremap failed\n"); - return PTR_ERR(priv->mbx); + err = PTR_ERR(priv->mbx); + goto probe_exit_candev; }
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!irq) { dev_err(&pdev->dev, "No irq resource\n"); - goto probe_exit; + goto probe_exit_candev; }
priv->ndev = ndev; @@ -983,7 +986,7 @@ probe_exit_release_clk: clk_put(priv->clk); probe_exit_candev: free_candev(ndev); -probe_exit: + return err; }