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Message-Id: <20210208061922.10073-1-samuel@sholland.org> Date: Mon, 8 Feb 2021 00:19:22 -0600 From: Samuel Holland <samuel@...lland.org> To: Gregory CLEMENT <gregory.clement@...tlin.com>, Wolfram Sang <wsa@...nel.org>, linux-i2c@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Samuel Holland <samuel@...lland.org>, Dan Carpenter <dan.carpenter@...cle.com> Subject: [PATCH] i2c: mv64xxx: Fix check for missing clock In commit e5c02cf54154 ("i2c: mv64xxx: Add runtime PM support"), error pointers to optional clocks were replaced by NULL to simplify the resume callback implementation. However, that commit missed that the IS_ERR check in mv64xxx_of_config should be replaced with a NULL check. As a result, the check always passes, even for an invalid device tree. Fixes: e5c02cf54154 ("i2c: mv64xxx: Add runtime PM support") Reported-by: Dan Carpenter <dan.carpenter@...cle.com> Signed-off-by: Samuel Holland <samuel@...lland.org> --- drivers/i2c/busses/i2c-mv64xxx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index b03c344323d1..c590d36b5fd1 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c @@ -813,7 +813,7 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data, * need to know tclk in order to calculate bus clock * factors. */ - if (IS_ERR(drv_data->clk)) { + if (!drv_data->clk) { rc = -ENODEV; goto out; } -- 2.26.2
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