diff options
| author |   Bruce Allan <bruce.w.allan@intel.com> | 2014-10-15 11:33:15 -0700 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2014-10-24 22:49:37 +0800 |
| commit | 8c4cef464b90b1638ff01a922d6a34095cc09c0c (patch) | |
| tree | 7de1077263da5574206ee4fc77d5c054f8aeea4d /drivers/crypto/qat/qat_common | |
| parent | crypto: drbg - use crypto_inc (diff) | |
| download | linux-dev-8c4cef464b90b1638ff01a922d6a34095cc09c0c.tar.xz linux-dev-8c4cef464b90b1638ff01a922d6a34095cc09c0c.zip | |
crypto: qat - fix bad unlock balance
The mutex table_lock is unlocked in two functions without first being locked.
Fix the functions to properly protect the accel_table with the table_lock.
Also, fix a spelling error in one of the function's header comment.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/qat/qat_common')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_dev_mgr.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_dev_mgr.c b/drivers/crypto/qat/qat_common/adf_dev_mgr.c index ae71555c0868..4a0a829d4500 100644 --- a/drivers/crypto/qat/qat_common/adf_dev_mgr.c +++ b/drivers/crypto/qat/qat_common/adf_dev_mgr.c @@ -129,12 +129,13 @@ struct adf_accel_dev *adf_devmgr_get_first(void) * Function returns acceleration device associated with the given pci device. * To be used by QAT device specific drivers. * - * Return: pinter to accel_dev or NULL if not found. + * Return: pointer to accel_dev or NULL if not found. */ struct adf_accel_dev *adf_devmgr_pci_to_accel_dev(struct pci_dev *pci_dev) { struct list_head *itr; + mutex_lock(&table_lock); list_for_each(itr, &accel_table) { struct adf_accel_dev *ptr = list_entry(itr, struct adf_accel_dev, list); @@ -144,6 +145,7 @@ struct adf_accel_dev *adf_devmgr_pci_to_accel_dev(struct pci_dev *pci_dev) return ptr; } } + mutex_unlock(&table_lock); return NULL; } EXPORT_SYMBOL_GPL(adf_devmgr_pci_to_accel_dev); @@ -152,6 +154,7 @@ struct adf_accel_dev *adf_devmgr_get_dev_by_id(uint32_t id) { struct list_head *itr; + mutex_lock(&table_lock); list_for_each(itr, &accel_table) { struct adf_accel_dev *ptr = list_entry(itr, struct adf_accel_dev, list); @@ -161,6 +164,7 @@ struct adf_accel_dev *adf_devmgr_get_dev_by_id(uint32_t id) return ptr; } } + mutex_unlock(&table_lock); return NULL; } |