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| author |   Monam Agarwal <monamagarwal123@gmail.com> | 2014-03-24 01:02:42 +0530 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2014-04-16 20:16:46 +0800 |
| commit | 7ded6e3d1bf5f83786753d1e0556a5c9711ced8a (patch) | |
| tree | c0d552d7dced0e54dabaa8a74f3eeb1d60d87d88 /drivers/crypto/nx/nx-842.c | |
| parent | crypto: ghash-clmulni-intel - Use u128 instead of be128 for internal key (diff) | |
| download | wireguard-linux-7ded6e3d1bf5f83786753d1e0556a5c9711ced8a.tar.xz wireguard-linux-7ded6e3d1bf5f83786753d1e0556a5c9711ced8a.zip | |
crypto: nx - Use RCU_INIT_POINTER(x, NULL)
This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL)
The rcu_assign_pointer() ensures that the initialization of a structure
is carried out before storing a pointer to that structure.
And in the case of the NULL pointer, there is no structure to initialize.
So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL)
Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/nx/nx-842.c')
| -rw-r--r-- | drivers/crypto/nx/nx-842.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/crypto/nx/nx-842.c b/drivers/crypto/nx/nx-842.c index 1e5481d88a26..c4fcbf47475f 100644 --- a/drivers/crypto/nx/nx-842.c +++ b/drivers/crypto/nx/nx-842.c @@ -1234,7 +1234,7 @@ static int __exit nx842_remove(struct vio_dev *viodev) old_devdata = rcu_dereference_check(devdata, lockdep_is_held(&devdata_mutex)); of_reconfig_notifier_unregister(&nx842_of_nb); - rcu_assign_pointer(devdata, NULL); + RCU_INIT_POINTER(devdata, NULL); spin_unlock_irqrestore(&devdata_mutex, flags); synchronize_rcu(); dev_set_drvdata(&viodev->dev, NULL); @@ -1285,7 +1285,7 @@ static void __exit nx842_exit(void) spin_lock_irqsave(&devdata_mutex, flags); old_devdata = rcu_dereference_check(devdata, lockdep_is_held(&devdata_mutex)); - rcu_assign_pointer(devdata, NULL); + RCU_INIT_POINTER(devdata, NULL); spin_unlock_irqrestore(&devdata_mutex, flags); synchronize_rcu(); if (old_devdata) |