Commit f73e1851 authored Apr 09, 2013 by Wei Yongjun Committed by Mauro Carvalho Chehab Apr 14, 2013

[media] rc: nuvoton-cir: fix potential double free in nvt_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>

parent 408208fb

drivers/media/rc/nuvoton-cir.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1107,6 +1107,7 @@ static int nvt_probe(struct pnp_dev pdev, const struct pnp_device_id dev_id)
		release_region(nvt->cir_addr, CIR_IOREG_LENGTH);
		exit_unregister_device:
		rc_unregister_device(rdev);
		rdev = NULL;
		exit_free_dev_rdev:
		rc_free_device(rdev);
		kfree(nvt);