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Maxime Ripard 6662ae6af8 gpiolib: Keep returning EPROBE_DEFER when we should 
Commits c858233902 ("gpio: of: Support SPI nonstandard GPIO properties")
and 6a537d4846 ("gpio: of: Support regulator nonstandard GPIO
properties") have introduced a regression in the way error codes from
of_get_named_gpiod_flags are handled.

Previously, those errors codes were returned immediately, but the two
commits mentioned above are now overwriting the error pointer, meaning that
whatever value has been returned will be dropped in favor of whatever the
two new functions will return.

This might not be a big deal except for EPROBE_DEFER, on which GPIOlib
customers will depend on, and that will now be returned as an hard error
which means that they will not probe anymore, instead of gently deferring
their probe.

Since EPROBE_DEFER basically means that we have found a valid property but
there was no GPIO controller registered to handle it, fix this issues by
returning it as soon as we encounter it.

Fixes: c858233902 ("gpio: of: Support SPI nonstandard GPIO properties")
Fixes: 6a537d4846 ("gpio: of: Support regulator nonstandard GPIO properties")
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[Fold in fix to the fix]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-02-27 09:47:32 +01:00
arch unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
block vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
certs
crypto vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
Documentation KVM changes for 4.16 2018-02-10 13:16:35 -08:00
drivers gpiolib: Keep returning EPROBE_DEFER when we should 2018-02-27 09:47:32 +01:00
firmware
fs vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
include unify {de,}mangle_poll(), get rid of kernel-side POLL... 2018-02-11 14:37:22 -08:00
init membarrier: Provide core serializing command, *_SYNC_CORE 2018-02-05 21:35:03 +01:00
ipc vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
kernel vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
lib Kbuild updates for v4.16 (2nd) 2018-02-09 19:32:41 -08:00
LICENSES
mm vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
net vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
samples sample/bpf: fix erspan metadata 2018-02-06 11:32:49 -05:00
scripts Kbuild updates for v4.16 (2nd) 2018-02-09 19:32:41 -08:00
security vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
sound vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-09 15:34:18 -08:00
usr
virt vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
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MAINTAINERS KVM changes for 4.16 2018-02-10 13:16:35 -08:00
Makefile Linux 4.16-rc1 2018-02-11 15:04:29 -08:00
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.