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[ Upstream commit 4f3ed837186fc0d2722ba8d2457a594322e9c2ef ] This IS_ERR() check was deleted during in a cleanup because, at the time, the rpcb_call_async() function could not return an error pointer. That changed in commit25cf32ad5d("SUNRPC: Handle allocation failure in rpc_new_task()") and now it can return an error pointer. Put the check back. A related revert was done in commit13bd901418("Revert "SUNRPC: Remove unreachable error condition""). Fixes:037e910b52("SUNRPC: Remove unreachable error condition in rpcb_getport_async()") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.
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.