Commit 76098b36 authored Jul 20, 2017 by Luis R. Rodriguez Committed by Greg Kroah-Hartman Aug 10, 2017

firmware: send -EINTR on signal abort on fallback mechanism



Right now we send -EAGAIN to a syfs write which got interrupted.
Userspace can't tell what happened though, send -EINTR if we
were killed due to a signal so userspace can tell things apart.

This is only applicable to the fallback mechanism.

Reported-by: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 0d1f417e

drivers/base/firmware_class.c

+6 −3

Original line number	Diff line number	Diff line
		@@ -1089,9 +1089,12 @@ static int _request_firmware_load(struct firmware_priv *fw_priv,
		mutex_unlock(&fw_lock);
		}

		if (fw_state_is_aborted(&buf->fw_st))
		if (fw_state_is_aborted(&buf->fw_st)) {
		if (retval == -ERESTARTSYS)
		retval = -EINTR;
		else
		retval = -EAGAIN;
		else if (buf->is_paged_buf && !buf->data)
		} else if (buf->is_paged_buf && !buf->data)
		retval = -ENOMEM;

		device_del(f_dev);