afd7fd81f2
The usb_add_gadget_udc_release() routine in the USB gadget core will sometimes but not always call the gadget's release function when an error occurs. More specifically, if the struct usb_udc allocation fails then the release function is not called, and for other errors it is. As a result, users of this routine cannot know whether they need to deallocate the memory containing the gadget structure following an error. This leads to unavoidable memory leaks or double frees. This patch fixes the problem by splitting the existing device_register() call into device_initialize() and device_add(), and doing the udc allocation in between. That way, even if the allocation fails it is still possible to call device_del(), and so the release function will be always called following an error. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> |
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| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
README
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.