can: softing_cs: softingcs_probe(): fix memleak on registration failure

In case device registration fails during probe, the driver state and
the embedded platform device structure needs to be freed using
platform_device_put() to properly free all resources (e.g. the device
name).

Fixes: 680d8e2156c5 ("can: add driver for Softing card")
Link: https://lore.kernel.org/all/20211222104843.6105-1-johan@kernel.org
Cc: stable@vger.kernel.org # 2.6.38
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/softing/softing_cs.c b/drivers/net/can/softing/softing_cs.c
index 2e93ee79237395e310b5f16e0ef15aa77e427111..e5c939b63fa65889e34e274aaee1426a349b056e 100644 (file)
--- a/drivers/net/can/softing/softing_cs.c
+++ b/drivers/net/can/softing/softing_cs.c
@@ -293,7 +293,7 @@ static int softingcs_probe(struct pcmcia_device *pcmcia)
        return 0;
 
 platform_failed:
-       kfree(dev);
+       platform_device_put(pdev);
 mem_failed:
 pcmcia_bad:
 pcmcia_failed: