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[ Upstream commitd4a7a8893d] The bytes_compl and pkts_compl pointers passed to efx_dequeue_buffers cannot be NULL. Add a paranoid warning to check this condition and fix the one case where they were NULL. efx_enqueue_unwind() is called very rarely, during error handling. Without this fix it would fail with a NULL pointer dereference in efx_dequeue_buffer, with efx_enqueue_skb in the call stack. Fixes:e9117e5099("sfc: Firmware-Assisted TSO version 2") Reported-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Bert Kenward <bkenward@solarflare.com> Tested-by: Jarod Wilson <jarod@redhat.com> Acked-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.