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authorWeili Qian <qianweili@huawei.com>2022-08-27 13:27:37 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2022-09-02 13:38:06 +0300
commit5afc904f443de2afd31c4e0686ba178beede86fe (patch)
treeb25c934b86a54f57f7a2c6b09dfbef05eab36a17 /drivers/crypto
parent95b66bc4e789c5698b973e92235c2e901c7546e0 (diff)
downloadlinux-5afc904f443de2afd31c4e0686ba178beede86fe.tar.xz
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.c6
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;