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Commit 84c164a3 authored by John W. Linville's avatar John W. Linville
Browse files

b43: move hwrng registration driver to wireless core initialization 



...and unregistration to core shutdown.  Previously, the driver
remained registered even when the hardware was shutdown.  That
causes the driver to return -ENODEV if the b43 device is IFF_DOWN.
This change causes the driver to disappear in that case, allowing
/dev/hwrng to still function if another hwrng device is available.

Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 13eb670c

drivers/net/wireless/b43/main.c

+7 −2
Original line number Diff line number Diff line
@@ -4255,6 +4255,10 @@ static void b43_wireless_core_exit(struct b43_wldev *dev) 
	B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED);

	if (!dev || b43_status(dev) != B43_STAT_INITIALIZED)

		return;



	/* Unregister HW RNG driver */

	b43_rng_exit(dev->wl);



	b43_set_status(dev, B43_STAT_UNINIT);



	/* Stop the microcode PSM. */
@@ -4384,6 +4388,9 @@ static int b43_wireless_core_init(struct b43_wldev *dev) 


	b43_set_status(dev, B43_STAT_INITIALIZED);



	/* Register HW RNG driver */

	b43_rng_init(dev->wl);



out:

	return err;
@@ -4989,7 +4996,6 @@ static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id) 
		if (err)

			goto err_one_core_detach;

		b43_leds_register(wl->current_dev);

		b43_rng_init(wl);

	}



      out:
@@ -5025,7 +5031,6 @@ static void b43_remove(struct ssb_device *dev) 
	b43_one_core_detach(dev);



	if (list_empty(&wl->devlist)) {

		b43_rng_exit(wl);

		b43_leds_unregister(wl);

		/* Last core on the chip unregistered.

		 * We can destroy common struct b43_wl.