linux-kernel - [PATCH 5.3 060/105] Input: Fix memory leak in psxpad_spi

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Message-Id: <20191211150245.026703773@linuxfoundation.org>
Date:   Wed, 11 Dec 2019 16:05:49 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, emamd001@....edu,
        Navid Emamdoost <navid.emamdoost@...il.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: [PATCH 5.3 060/105] Input: Fix memory leak in psxpad_spi_probe

From: Navid Emamdoost <navid.emamdoost@...il.com>

In the implementation of psxpad_spi_probe() the allocated memory for
pdev is leaked if psxpad_spi_init_ff() or input_register_polled_device()
fail. The solution is using device managed allocation, like the one used
for pad. Perform the allocation using
devm_input_allocate_polled_device().

Fixes: 8be193c7b1f4 ("Input: add support for PlayStation 1/2 joypads connected via SPI")
Signed-off-by: Navid Emamdoost <navid.emamdoost@...il.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/input/joystick/psxpad-spi.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/input/joystick/psxpad-spi.c
+++ b/drivers/input/joystick/psxpad-spi.c
@@ -292,7 +292,7 @@ static int psxpad_spi_probe(struct spi_d
 	if (!pad)
 		return -ENOMEM;
 
-	pdev = input_allocate_polled_device();
+	pdev = devm_input_allocate_polled_device(&spi->dev);
 	if (!pdev) {
 		dev_err(&spi->dev, "failed to allocate input device\n");
 		return -ENOMEM;