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[ Upstream commit74a25e6e91] When down_interruptible() or ib_post_send() failed in rdma_request(), receive dma buffer is not unmapped. Add unmap action to error path. Also if ib_post_recv() failed in post_recv(), dma buffer is not unmapped. Add unmap action to error path. Link: https://lkml.kernel.org/r/20230104020424.611926-1-shaozhengchao@huawei.com Fixes:fc79d4b104("9p: rdma: RDMA Transport Support for 9P") Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org> 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.