From: Jiasheng Jiang Date: Wed, 23 Nov 2022 06:36:51 +0000 (+0800) Subject: can: m_can: Add check for devm_clk_get X-Git-Tag: v6.6.17~6107^2~33^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=68b4f9e0bdd0f920d7303d07bfe226cd0976961d;p=platform%2Fkernel%2Flinux-rpi.git can: m_can: Add check for devm_clk_get Since the devm_clk_get may return error, it should be better to add check for the cdev->hclk, as same as cdev->cclk. Fixes: f524f829b75a ("can: m_can: Create a m_can platform framework") Signed-off-by: Jiasheng Jiang Link: https://lore.kernel.org/all/20221123063651.26199-1-jiasheng@iscas.ac.cn Signed-off-by: Marc Kleine-Budde --- diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 00d11e9..e5575d2 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -1909,7 +1909,7 @@ int m_can_class_get_clocks(struct m_can_classdev *cdev) cdev->hclk = devm_clk_get(cdev->dev, "hclk"); cdev->cclk = devm_clk_get(cdev->dev, "cclk"); - if (IS_ERR(cdev->cclk)) { + if (IS_ERR(cdev->hclk) || IS_ERR(cdev->cclk)) { dev_err(cdev->dev, "no clock found\n"); ret = -ENODEV; }