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abf7b30d7f
In the Cirrus driver, the regular clean-up code also performs the clean-up of a failed initialization. If the fbdev's framebuffer was not initialized, the clean-up will fail within drm_framebuffer_unregister_private. Booting with cirrus.bpp=16 triggers this bug. The framebuffer is currently stored directly within struct cirrus_fbdev. To fix the bug, we turn it into a pointer that is only set for initialized framebuffers. The fbdev's clean-up code skips uninitialized framebuffers. The memory for struct drm_framebuffer is allocated dynamically. This requires additional error handling within cirrusfb_create. The framebuffer clean-up is now performed by drm_framebuffer_put, which also frees the data strcuture's memory. Link: https://bugzilla.suse.com/show_bug.cgi?id=1101822 Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20180720112743.27159-1-tzimmermann@suse.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
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.