From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
[ Upstream commit 3b132ab67fc7a358fff35e808fa65d4bea452521 ]
On probe error the driver should unmap the IO memory. Smatch reports:
drivers/memory/fsl_ifc.c:298 fsl_ifc_ctrl_probe() warn: 'fsl_ifc_ctrl_dev->gregs' not released on lines: 298.
Fixes: a20cbdeffce2 ("powerpc/fsl: Add support for Integrated Flash Controller")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210527154322.81253-1-krzysztof.kozlowski@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/memory/fsl_ifc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/memory/fsl_ifc.c b/drivers/memory/fsl_ifc.c
index a2c971743ffe..90aa658797af 100644
--- a/drivers/memory/fsl_ifc.c
+++ b/drivers/memory/fsl_ifc.c
@@ -218,8 +218,7 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev)
fsl_ifc_ctrl_dev->gregs = of_iomap(dev->dev.of_node, 0);
if (!fsl_ifc_ctrl_dev->gregs) {
dev_err(&dev->dev, "failed to get memory region\n");
- ret = -ENODEV;
- goto err;
+ return -ENODEV;
}
if (of_property_read_bool(dev->dev.of_node, "little-endian")) {
@@ -295,6 +294,7 @@ err_irq:
free_irq(fsl_ifc_ctrl_dev->irq, fsl_ifc_ctrl_dev);
irq_dispose_mapping(fsl_ifc_ctrl_dev->irq);
err:
+ iounmap(fsl_ifc_ctrl_dev->gregs);
return ret;
}
--
2.30.2
