[PATCH 5.12 262/292] memory: fsl_ifc: fix leak of private memory on probe failure

Greg Kroah-Hartman
2021-07-19T18:24:58Z

From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

[ Upstream commit 8e0d09b1232d0538066c40ed4c13086faccbdff6 ]

On probe error the driver should free the memory allocated for private
structure. Fix this by using resource-managed allocation.

Fixes: a20cbdeffce2 ("powerpc/fsl: Add support for Integrated Flash Controller")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210527154322.81253-2-krzysztof.kozlowski@canonical.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 a6324044a085..d062c2f8250f 100644
--- a/drivers/memory/fsl_ifc.c
+++ b/drivers/memory/fsl_ifc.c
@@ -97,7 +97,6 @@ static int fsl_ifc_ctrl_remove(struct platform_device *dev)
iounmap(ctrl->gregs);

dev_set_drvdata(&dev->dev, NULL);
- kfree(ctrl);

return 0;
}
@@ -209,7 +208,8 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev)

dev_info(&dev->dev, "Freescale Integrated Flash Controller\n");

- fsl_ifc_ctrl_dev = kzalloc(sizeof(*fsl_ifc_ctrl_dev), GFP_KERNEL);
+ fsl_ifc_ctrl_dev = devm_kzalloc(&dev->dev, sizeof(*fsl_ifc_ctrl_dev),
+ GFP_KERNEL);
if (!fsl_ifc_ctrl_dev)
return -ENOMEM;

--
2.30.2