diff options
| author |   Weili Qian <qianweili@huawei.com> | 2022-08-27 18:27:37 +0800 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2022-09-02 18:38:06 +0800 |
| commit | 5afc904f443de2afd31c4e0686ba178beede86fe (patch) | |
| tree | b25c934b86a54f57f7a2c6b09dfbef05eab36a17 /drivers/crypto | |
| parent | crypto: hisilicon/qm - check mailbox operation result (diff) | |
| download | linux-dev-5afc904f443de2afd31c4e0686ba178beede86fe.tar.xz linux-dev-5afc904f443de2afd31c4e0686ba178beede86fe.zip | |
crypto: hisilicon/qm - fix missing put dfx access
In function qm_cmd_write(), if function returns from
branch 'atomic_read(&qm->status.flags) == QM_STOP',
the got dfx access is forgotten to put.
Fixes: 607c191b371d ("crypto: hisilicon - support runtime PM for accelerator device")
Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/hisilicon/qm.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index 1c661c89308d..fd9fb159048f 100644 --- a/drivers/crypto/hisilicon/qm.c +++ b/drivers/crypto/hisilicon/qm.c @@ -2216,8 +2216,10 @@ static ssize_t qm_cmd_write(struct file *filp, const char __user *buffer, return ret; /* Judge if the instance is being reset. */ - if (unlikely(atomic_read(&qm->status.flags) == QM_STOP)) - return 0; + if (unlikely(atomic_read(&qm->status.flags) == QM_STOP)) { + ret = 0; + goto put_dfx_access; + } if (count > QM_DBG_WRITE_LEN) { ret = -ENOSPC; |