diff options
| author | Alexander Aring <aar@pengutronix.de> | 2016-09-01 11:24:57 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2016-09-19 20:19:34 +0200 |
| commit | bdca1fd9a6df745857e23c6056494b7fe062b4e6 (patch) | |
| tree | 208199f3d93f8033688dd731405aa2328c467497 /drivers/net/ieee802154 | |
| parent | 8a0c9f49090fe8ae122fd1bbf7260c8492289386 (diff) | |
| download | linux-bdca1fd9a6df745857e23c6056494b7fe062b4e6.tar.bz2 | |
fakelb: fix schedule while atomic
This patch changes the spinlock to mutex for the available fakelb phy
list. When holding the spinlock the ieee802154_unregister_hw is called
which holding the rtnl_mutex, in that case we get a "BUG: sleeping function
called from invalid context" error. We simple change the spinlock to
mutex which allows to hold the rtnl lock there.
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/net/ieee802154')
| -rw-r--r-- | drivers/net/ieee802154/fakelb.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/ieee802154/fakelb.c b/drivers/net/ieee802154/fakelb.c index 0becf0ac3926..ec387efb61d0 100644 --- a/drivers/net/ieee802154/fakelb.c +++ b/drivers/net/ieee802154/fakelb.c @@ -30,7 +30,7 @@ static int numlbs = 2; static LIST_HEAD(fakelb_phys); -static DEFINE_SPINLOCK(fakelb_phys_lock); +static DEFINE_MUTEX(fakelb_phys_lock); static LIST_HEAD(fakelb_ifup_phys); static DEFINE_RWLOCK(fakelb_ifup_phys_lock); @@ -188,9 +188,9 @@ static int fakelb_add_one(struct device *dev) if (err) goto err_reg; - spin_lock(&fakelb_phys_lock); + mutex_lock(&fakelb_phys_lock); list_add_tail(&phy->list, &fakelb_phys); - spin_unlock(&fakelb_phys_lock); + mutex_unlock(&fakelb_phys_lock); return 0; @@ -222,10 +222,10 @@ static int fakelb_probe(struct platform_device *pdev) return 0; err_slave: - spin_lock(&fakelb_phys_lock); + mutex_lock(&fakelb_phys_lock); list_for_each_entry_safe(phy, tmp, &fakelb_phys, list) fakelb_del(phy); - spin_unlock(&fakelb_phys_lock); + mutex_unlock(&fakelb_phys_lock); return err; } @@ -233,10 +233,10 @@ static int fakelb_remove(struct platform_device *pdev) { struct fakelb_phy *phy, *tmp; - spin_lock(&fakelb_phys_lock); + mutex_lock(&fakelb_phys_lock); list_for_each_entry_safe(phy, tmp, &fakelb_phys, list) fakelb_del(phy); - spin_unlock(&fakelb_phys_lock); + mutex_unlock(&fakelb_phys_lock); return 0; } |