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[media] rc: winbond-cir: fix potential double free in wbcir_probe()
Since rc_unregister_device() frees its argument, the subsequently call to rc_free_device() on the same variable will cause a double free bug. Fix by set argument to NULL, thus when fall through to rc_free_device(), nothing will be done there. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -1151,6 +1151,7 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
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release_region(data->wbase, WAKEUP_IOMEM_LEN);
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exit_unregister_device:
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rc_unregister_device(data->dev);
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data->dev = NULL;
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exit_free_rc:
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rc_free_device(data->dev);
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exit_unregister_led:
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