[PATCH 5.15 09/36] clk: mxl: syscon_node_to_regmap() returns error pointers

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

From: Rahul Tanwar <rtanwar@maxlinear.com>

[ Upstream commit 7256d1f4618b40792d1e9b9b6cb1406a13cad2dd ]

Commit 036177310bac ("clk: mxl: Switch from direct readl/writel based IO
to regmap based IO") introduced code resulting in below warning issued
by the smatch static checker.

  drivers/clk/x86/clk-lgm.c:441 lgm_cgu_probe() warn: passing zero to 'PTR_ERR'

Fix the warning by replacing incorrect IS_ERR_OR_NULL() with IS_ERR().

Fixes: 036177310bac ("clk: mxl: Switch from direct readl/writel based IO to regmap based IO")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rahul Tanwar <rtanwar@maxlinear.com>
Link: https://lore.kernel.org/r/49e339d4739e4ae4c92b00c1b2918af0755d4122.1666695221.git.rtanwar@maxlinear.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/x86/clk-lgm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/x86/clk-lgm.c b/drivers/clk/x86/clk-lgm.c
index 4de77b2c750d3..f69455dd1c980 100644
--- a/drivers/clk/x86/clk-lgm.c
+++ b/drivers/clk/x86/clk-lgm.c
@@ -436,7 +436,7 @@ static int lgm_cgu_probe(struct platform_device *pdev)
 	ctx->clk_data.num = CLK_NR_CLKS;
 
 	ctx->membase = syscon_node_to_regmap(np);
-	if (IS_ERR_OR_NULL(ctx->membase)) {
+	if (IS_ERR(ctx->membase)) {
 		dev_err(dev, "Failed to get clk CGU iomem\n");
 		return PTR_ERR(ctx->membase);
 	}
-- 
2.39.0