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[ Upstream commit 649cd16c438f51d4cd777e71ca1f47f6e0c5e65d ] If usb_set_interface() failed, iface->cur_altsetting will not be assigned and it will be used in flexcop_usb_transfer_init() It may lead a NULL pointer dereference. Check usb_set_interface() return value in flexcop_usb_init() and return failed to avoid using this NULL pointer. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.