Staging: comedi: cleanup: remove unneeded null checks
These checks are obviously pointless because kfree() can handle null dereferences. But really the main problem is that if the pointers were null that would cause problems on the ealier lines. The dereferences would cause an oops and the _release() functions use ->priv to determine which IRQ to free. I looked into it and quite a few of the detach functions assume link->priv is non-null. It seems like we can remove these checks. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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