[PATCH next] Coresight: Fix a NULL vs IS_ERR() bug in probe
From: Dan Carpenter
Date: Fri Mar 14 2025 - 06:55:31 EST
The devm_platform_get_and_ioremap_resource() function doesn't
return NULL, it returns error pointers. Update the checking to
match.
Fixes: f78d206f3d73 ("Coresight: Add Coresight TMC Control Unit driver")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/hwtracing/coresight/coresight-ctcu-core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-ctcu-core.c b/drivers/hwtracing/coresight/coresight-ctcu-core.c
index da35d8b4d579..c6bafc96db96 100644
--- a/drivers/hwtracing/coresight/coresight-ctcu-core.c
+++ b/drivers/hwtracing/coresight/coresight-ctcu-core.c
@@ -204,8 +204,8 @@ static int ctcu_probe(struct platform_device *pdev)
dev->platform_data = pdata;
base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
- if (!base)
- return -ENOMEM;
+ if (IS_ERR(base))
+ return PTR_ERR(base);
drvdata->apb_clk = coresight_get_enable_apb_pclk(dev);
if (IS_ERR(drvdata->apb_clk))
--
2.47.2