[PATCH] [media] rc: ene_ir: fix potential double free in ene_probe()

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From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxxxxx>
---
 drivers/media/rc/ene_ir.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/rc/ene_ir.c b/drivers/media/rc/ene_ir.c
index ee6c984..ed184f6 100644
--- a/drivers/media/rc/ene_ir.c
+++ b/drivers/media/rc/ene_ir.c
@@ -1098,6 +1098,7 @@ exit_release_hw_io:
 	release_region(dev->hw_io, ENE_IO_SIZE);
 exit_unregister_device:
 	rc_unregister_device(rdev);
+	rdev = NULL;
 exit_free_dev_rdev:
 	rc_free_device(rdev);
 	kfree(dev);

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