[PATCH 5.9 356/757] mfd: sm501: Fix leaks in probe()

Greg Kroah-Hartman
2020-10-27T15:44:09Z

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 8ce24f8967df2836b4557a23e74dc4bb098249f1 ]

This code should clean up if sm501_init_dev() fails.

Fixes: b6d6454fdb66 ("[PATCH] mfd: SM501 core driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/sm501.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index ccd62b9639528..6d2f4a0a901dc 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1415,8 +1415,14 @@ static int sm501_plat_probe(struct platform_device *dev)
goto err_claim;
}

- return sm501_init_dev(sm);
+ ret = sm501_init_dev(sm);
+ if (ret)
+ goto err_unmap;
+
+ return 0;

+ err_unmap:
+ iounmap(sm->regs);
err_claim:
release_mem_region(sm->io_res->start, 0x100);
err_res:
--
2.25.1