devm_release_mem_region() is called explicitely in case
devm_ioremap() fails, however the same release function
is later called also as devres release of
devm_request_mem_region() causing double resource free.
Fixes: 72f8c0bfa0de ("lib: devres: add convenience function to remap a resource")
Signed-off-by: Ladislav Michl <ladis@xxxxxxxxxxxxxx>
---
lib/devres.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/lib/devres.c b/lib/devres.c
index 5f2aedd58bc5..584356a568d0 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -156,7 +156,6 @@ void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res)
dest_ptr = devm_ioremap(dev, res->start, size);
if (!dest_ptr) {
dev_err(dev, "ioremap failed for resource %pR\n", res);
- devm_release_mem_region(dev, res->start, size);
dest_ptr = IOMEM_ERR_PTR(-ENOMEM);
}
--
2.15.1
