PCI: Use scnprintf(), not snprintf(), in sysfs "show" functions
Sysfs "show" methods should return the number of bytes printed into the
buffer. This is the return value of scnprintf() [1].
snprintf(buf, size, ...) prints at most "size" bytes into "buf", but
returns the number of bytes that *would* be printed if "buf" were large
enough.
Replace use of snprintf() with scnprintf(). No functional change intended.
Related:
https://patchwork.kernel.org/patch/
9946759/#
20969333
https://lwn.net/Articles/69419
[1] Documentation/filesystems/sysfs.rst
[bhelgaas: squashed, commit log]
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20200824233918.26306-2-kw@linux.com
Link: https://lore.kernel.org/r/20200824233918.26306-3-kw@linux.com
Link: https://lore.kernel.org/r/20200824233918.26306-4-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>