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![Chunfeng Yun](https://secure.gravatar.com/avatar/875f07553544f34134bd62abb7c2c2f9.jpg?s=96&d=mm)
Chunfeng Yun committed f5e6253fe6d
usb: core: buffer: avoid NULL pointer dereferrence NULL pointer dereferrence will happen when class driver wants to allocate zero length buffer and pool_max[0] can't be used, so simply returns NULL in the case. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>