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[ Upstream commited40852967] smatch gives the warning: drivers/infiniband/ulp/rtrs/rtrs-srv.c:1805 rtrs_rdma_connect() warn: passing zero to 'PTR_ERR' Which is trying to say smatch has shown that srv is not an error pointer and thus cannot be passed to PTR_ERR. The solution is to move the list_add() down after full initilization of rtrs_srv. To avoid holding the srv_mutex too long, only hold it during the list operation as suggested by Leon. Fixes:03e9b33a0f("RDMA/rtrs: Only allow addition of path to an already established session") Link: https://lore.kernel.org/r/20210216143807.65923-1-jinpu.wang@cloud.ionos.com Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.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.