Commit 4ec16da7 authored by Wei Yongjun's avatar Wei Yongjun Committed by Mauro Carvalho Chehab

[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: default avatarWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 4290fd1a
...@@ -1151,6 +1151,7 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id) ...@@ -1151,6 +1151,7 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
release_region(data->wbase, WAKEUP_IOMEM_LEN); release_region(data->wbase, WAKEUP_IOMEM_LEN);
exit_unregister_device: exit_unregister_device:
rc_unregister_device(data->dev); rc_unregister_device(data->dev);
data->dev = NULL;
exit_free_rc: exit_free_rc:
rc_free_device(data->dev); rc_free_device(data->dev);
exit_unregister_led: exit_unregister_led:
......
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