soc: imx8m: Fix incorrect check for of_clk_get_by_name()

[ Upstream commit 490748874e ]

of_clk_get_by_name() returns error pointers instead of NULL.
Use IS_ERR() checks the return value to catch errors.

Fixes: 836fb30949 ("soc: imx8m: Enable OCOTP clock before reading the register")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-12-31 13:58:48 +04:00 committed by Greg Kroah-Hartman
parent c47e53679a
commit 9eea16953e

View file

@ -66,8 +66,8 @@ static u32 __init imx8mq_soc_revision(void)
ocotp_base = of_iomap(np, 0);
WARN_ON(!ocotp_base);
clk = of_clk_get_by_name(np, NULL);
if (!clk) {
WARN_ON(!clk);
if (IS_ERR(clk)) {
WARN_ON(IS_ERR(clk));
return 0;
}