2023-07-04 09:07:05

by Wang Ming

[permalink] [raw]
Subject: [PATCH v1] firmware:Fix an NULL vs IS_ERR() bug in probe

The devm_memremap() function returns error pointers.
It never returns NULL. Fix the check.

Signed-off-by: Wang Ming <[email protected]>
---
drivers/firmware/stratix10-svc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c
index 2d6741261..cab11af28 100644
--- a/drivers/firmware/stratix10-svc.c
+++ b/drivers/firmware/stratix10-svc.c
@@ -756,7 +756,7 @@ svc_create_memory_pool(struct platform_device *pdev,
paddr = begin;
size = end - begin;
va = devm_memremap(dev, paddr, size, MEMREMAP_WC);
- if (!va) {
+ if (IS_ERR(va)) {
dev_err(dev, "fail to remap shared memory\n");
return ERR_PTR(-EINVAL);
}
--
2.25.1