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[ Upstream commit6caf8a6d65] If the rx-offload skb_queue is full can_rx_offload_queue_tail() will not queue the skb and return with an error. This patch frees the skb in case of a full queue, which brings can_rx_offload_queue_tail() in line with the can_rx_offload_queue_sorted() function, which has been adjusted in the previous patch. The return value is adjusted to -ENOBUFS to better reflect the actual problem. The device stats handling is left to the caller. Fixes:d254586c34("can: rx-offload: Add support for HW fifo based irq offloading") Reported-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> 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.
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.