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It can be known that the function “kfree” performs a null pointer check for its input parameter. It is therefore not needed to repeat such a check before its call. Thus remove a redundant pointer check. The source code was transformed by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>