[PATCH 5.4 220/355] memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()

From: Greg Kroah-Hartman
Date: Mon Nov 15 2021 - 12:56:13 EST


From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

[ Upstream commit beae4a6258e64af609ad5995cc6b6056eb0d898e ]

The "msh" pointer is device managed, meaning that memstick_alloc_host()
calls device_initialize() on it. That means that it can't be free
using kfree() but must instead be freed with memstick_free_host().
Otherwise it leads to a tiny memory leak of device resources.

Fixes: 60fdd931d577 ("memstick: add support for JMicron jmb38x MemoryStick host controller")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211011123912.GD15188@kili
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/memstick/host/jmb38x_ms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memstick/host/jmb38x_ms.c b/drivers/memstick/host/jmb38x_ms.c
index 64fff6abe60e8..74d6686b35f77 100644
--- a/drivers/memstick/host/jmb38x_ms.c
+++ b/drivers/memstick/host/jmb38x_ms.c
@@ -899,7 +899,7 @@ static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt)

iounmap(host->addr);
err_out_free:
- kfree(msh);
+ memstick_free_host(msh);
return NULL;
}

--
2.33.0