bf6ba3aeb2
Russell King reported: "When removing and reloading the etnaviv module, the following splat occurs: sysfs: cannot create duplicate filename '/devices/platform/etnaviv' CPU: 0 PID: 1471 Comm: modprobe Not tainted 4.17.0+ #1608 Hardware name: Marvell Dove (Cubox) Backtrace: [<c00157d4>] (dump_backtrace) from [<c0015b8c>] (show_stack+0x18/0x1c) r6:ef033e38 r5:ee07b340 r4:edb9d000 r3:00000000 [<c0015b74>] (show_stack) from [<c0620784>] (dump_stack+0x20/0x28) [<c0620764>] (dump_stack) from [<c01bcd24>] (sysfs_warn_dup+0x5c/0x70) [<c01bccc8>] (sysfs_warn_dup) from [<c01bce14>] (sysfs_create_dir_ns+0x90/0x98) ..." Commit246774d17f("drm/etnaviv: remove the need for a gpu-subsystem DT node") introduced DRM registration via platform_device_register_simple(), but missed to call platform_device_unregister() inside etnaviv_exit(). Fix the problem by calling platform_device_unregister() inside etnaviv_exit(). While at it, also rearrange the function calls in the exit path to make them happen in the opposite order of registration. Tested on a imx6-sabresd board. Cc: <stable@vger.kernel.org> Fixes:246774d17f("drm/etnaviv: remove the need for a gpu-subsystem DT node") Reported-by: Russell King <linux@armlinux.org.uk> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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.