firmware: generalize reading file contents as a helper
We'll want to reuse this same code later in order to
read two separate types of file contents. This generalizes
fw_read_file() for reading a file rebrands it as fw_read_file().
This caller lets us pegs arbitrary data onto the target
buffer and size if the file is found.
While at it this cleans up the exit paths on fw_read_file().
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
1 file changed
