mainlining shenanigans
2938bedd0e
The pci_alloc_irq_vectors_affinity() function returns negative error codes
or it returns a number between the minimum vectors (1 in this case) and
max_vectors. It won't return zero. Because "i" is a u16 then the error
handling won't work. And also if it did work the error code was not set.
Really "max_vectors" can be an int as well because we're doing a min_t() on
int type. The other change is that it's better to remove unnecessary
initialization so that static checkers can warn us if there are ever
uninitialized variable bugs introduced in the future.
I changed the error code from -1 (-EPERM) if the kmalloc() failed to
-ENOMEM. And on success path I changed it from "return retval;" to "return
0;" which shouldn't affect the compiled code but makes it more readable.
Link: https://lore.kernel.org/r/YMCJcnmSI4kOIyv/@mwanda
Fixes:
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|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.