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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2024-10-09 22:53:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-10-13 17:11:51 +0200 |
| commit | 3b0889f95789aa90b0f1a6921d5d6b151f2e53ae (patch) | |
| tree | 85266d7d80d1ff339aa2d6c3dcc439da47291f5f /drivers/misc | |
| parent | dfc881abca4247dcf453ce206f05fe09b51be158 (diff) | |
| download | linux-3b0889f95789aa90b0f1a6921d5d6b151f2e53ae.tar.gz linux-3b0889f95789aa90b0f1a6921d5d6b151f2e53ae.tar.bz2 linux-3b0889f95789aa90b0f1a6921d5d6b151f2e53ae.zip | |
rpmb: Remove some useless locking
There is no need for explicit locking when using the ida API, as stated in
the doc related to ida_alloc_range() / ida_free().
So remove rpmb_mutex.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/b1fcc6707ec2b6309d50060fa52ccc2c892afde2.1728507153.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/rpmb-core.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/misc/rpmb-core.c b/drivers/misc/rpmb-core.c index ad1b5c1a37fa..2d653926cdbb 100644 --- a/drivers/misc/rpmb-core.c +++ b/drivers/misc/rpmb-core.c @@ -13,7 +13,6 @@ #include <linux/slab.h> static DEFINE_IDA(rpmb_ida); -static DEFINE_MUTEX(rpmb_mutex); /** * rpmb_dev_get() - increase rpmb device ref counter @@ -63,9 +62,7 @@ static void rpmb_dev_release(struct device *dev) { struct rpmb_dev *rdev = to_rpmb_dev(dev); - mutex_lock(&rpmb_mutex); ida_free(&rpmb_ida, rdev->id); - mutex_unlock(&rpmb_mutex); kfree(rdev->descr.dev_id); kfree(rdev); } @@ -175,9 +172,7 @@ struct rpmb_dev *rpmb_dev_register(struct device *dev, goto err_free_rdev; } - mutex_lock(&rpmb_mutex); ret = ida_alloc(&rpmb_ida, GFP_KERNEL); - mutex_unlock(&rpmb_mutex); if (ret < 0) goto err_free_dev_id; rdev->id = ret; |