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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2013-04-09 05:44:29 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-04-14 21:38:05 -0300
commitf73e1851c3e196b7089eb5163a7f6bf491d9b46b (patch)
treecacdcea9cdaa537d0c87761b803846a2e91ac8f5
parent408208fbf289b4384a540ecf9ce1738f5d05b701 (diff)
[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>
-rw-r--r--drivers/media/rc/nuvoton-cir.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index 40125d779049..21ee0dc1b7ec 100644
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -1107,6 +1107,7 @@ exit_release_cir_addr:
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);

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