[PATCH 6.1.y 3/3] mfd: sm501: Fix potential memory leaks during remove

[Sasha Levin <sashal@kernel.org>]

From: Abdun Nihaal <nihaal@cse.iitm.ac.in>

[ Upstream commit 83feedd9d83c0c5199f98c72df0a6196b4aefb4d ]

The memory allocated for struct sm501_devdata in sm501_pci_probe() and
sm501_plat_probe() is not freed by the corresponding remove functions
sm501_pci_remove() and sm501_plat_remove(). Fix that by adding a call to
kfree().

Fixes: b6d6454fdb66 ("[PATCH] mfd: SM501 core driver")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Link: https://patch.msgid.link/20260720113836.73133-1-nihaal@cse.iitm.ac.in
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/sm501.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 06e796883189e..5752099683eb4 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1667,6 +1667,7 @@ static void sm501_pci_remove(struct pci_dev *dev)
 	release_mem_region(sm->io_res->start, 0x100);
 
 	pci_disable_device(dev);
+	kfree(sm);
 }
 
 static void sm501_plat_remove(struct platform_device *dev)
@@ -1677,6 +1678,7 @@ static void sm501_plat_remove(struct platform_device *dev)
 	iounmap(sm->regs);
 
 	release_mem_region(sm->io_res->start, 0x100);
+	kfree(sm);
 }
 
 static const struct pci_device_id sm501_pci_tbl[] = {
-- 
2.53.0