wait_on_bit_timeout() returns 0 if the bit was cleared, -EINTR if the
process received a signal and the mode permitted wake up on that signal,
or -EAGAIN if the timeout elapsed. It never returns 1.
Hence the check "err == 1" in mrvl_load_firmware() is dead code: when
the waiting task is interrupted by a signal (-EINTR), the code falls
into the "else if (err)" branch and misreports it as "Firmware request
timeout" with -ETIMEDOUT instead of propagating -EINTR.
Fix this by testing for -EINTR so that an interrupted firmware load is
properly detected and reported.
Fixes: 162f812f23 ("Bluetooth: hci_uart: Add Marvell support")
Signed-off-by: Gongwei Li <ligongwei@kylinos.cn>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2deb76c21b