mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-08-31 12:52:29 -04:00
0ff49390aa
Remove redundant error handling from xhci_add_interrupter() instead of trying to accommodate them in future changes. ======== Reasoning for the removal ======== Function xhci_add_interrupter() is invoked in two scenarios: Primary Interrupter Setup (ID 0): The maximum number of interrupters is always greater than zero, and the primary interrupter is always allocated as part of the driver's initialization process. In case of failure, the xHCI driver errors and exits. Secondary Interrupter Creation (ID >= 1): The interrupter is pre-allocated, and an empty slot is identified before invoking xhci_add_interrupter(). In both cases, the existing error handling within xhci_add_interrupter() is redundant and unnecessary. Upcoming Changes: In the subsequent commit, interrupter initialization will move from xhci_mem_init() to xhci_init(). This change is necessary to facilitate the ability to restart the xHCI driver without re-allocating memory. As a result, the allocated interrupter must be stored in the interrupters pointer array before initialization. Consequently, xhci_create_secondary_interrupter() would need to handle pointer removal for allocated 'interrupters' array upon failure, although xhci_add_interrupter() will never fail. Signed-off-by: Niklas Neronin <niklas.neronin@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20250515135621.335595-11-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 reStructuredText 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.