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| author | Xiongfeng Wang <wangxiongfeng2@huawei.com> | 2022-11-11 13:00:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-14 12:15:49 +0300 |
| commit | ed97ade655ea8965dce65c3e2055574cd98b5487 (patch) | |
| tree | d81e635836a521afb1a8d65e9396c9ed45a6de07 /drivers/crypto/hisilicon/qm.h | |
| parent | 2dfe1d221e1ab6e568b1026c38735d061c2c3cae (diff) | |
| download | linux-ed97ade655ea8965dce65c3e2055574cd98b5487.tar.xz | |
crypto: hisilicon/qm - add missing pci_dev_put() in q_num_set()
[ Upstream commit cc7710d0d4ebc6998f04035cde4f32c5ddbe9d7f ]
pci_get_device() will increase the reference count for the returned
pci_dev. We need to use pci_dev_put() to decrease the reference count
before q_num_set() returns.
Fixes: c8b4b477079d ("crypto: hisilicon - add HiSilicon HPRE accelerator")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/crypto/hisilicon/qm.h')
| -rw-r--r-- | drivers/crypto/hisilicon/qm.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h index 0420f4ce7197..aaad3d76dc04 100644 --- a/drivers/crypto/hisilicon/qm.h +++ b/drivers/crypto/hisilicon/qm.h @@ -289,14 +289,14 @@ struct hisi_qp { static inline int q_num_set(const char *val, const struct kernel_param *kp, unsigned int device) { - struct pci_dev *pdev = pci_get_device(PCI_VENDOR_ID_HUAWEI, - device, NULL); + struct pci_dev *pdev; u32 n, q_num; int ret; if (!val) return -EINVAL; + pdev = pci_get_device(PCI_VENDOR_ID_HUAWEI, device, NULL); if (!pdev) { q_num = min_t(u32, QM_QNUM_V1, QM_QNUM_V2); pr_info("No device found currently, suppose queue number is %d\n", @@ -306,6 +306,8 @@ static inline int q_num_set(const char *val, const struct kernel_param *kp, q_num = QM_QNUM_V1; else q_num = QM_QNUM_V2; + + pci_dev_put(pdev); } ret = kstrtou32(val, 10, &n); |