firmware: fix __getname() missing failure check

The request_firmware*() APIs uses __getname() to iterate
over the list of paths possible for firmware to be found,
the code however never checked for failure on __getname().
Although *very unlikely*, this can still happen. Add the
missing check.

There is still no checks on the concatenation of the path
and filename passed, that requires a bit more work and
subsequent patches address this. The commit that introduced
this is abb139e7 ("firmware: teach the kernel to load
firmware files directly from the filesystem").

mcgrof@ergon ~/linux (git::firmware-fixes) $ git describe --contains abb139e7
v3.7-rc1~120

Cc: Linus Torvalds <[email protected]>
Cc: Ming Lei <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: David Howells <[email protected]>
Cc: Kyle McMartin <[email protected]>
Signed-off-by: Luis R. Rodriguez <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions