6.7-stable review patch. If anyone has any objections, please let me know.
------------------
From: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx>
[ Upstream commit a643212c9f28d09225c3792c316bc4aaf6be4a68 ]
There is a possibility that the function adf_devmgr_pci_to_accel_dev()
might return a NULL pointer.
Add a NULL pointer check in the function rp2srv_show().
Fixes: dbc8876dd873 ("crypto: qat - add rp2svc sysfs attribute")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx>
Reviewed-by: Ahsan Atta <ahsan.atta@xxxxxxxxx>
Reviewed-by: David Guckian <david.guckian@xxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/crypto/intel/qat/qat_common/adf_sysfs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/crypto/intel/qat/qat_common/adf_sysfs.c b/drivers/crypto/intel/qat/qat_common/adf_sysfs.c
index 6f0b3629da13..d450dad32c9e 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_sysfs.c
+++ b/drivers/crypto/intel/qat/qat_common/adf_sysfs.c
@@ -215,6 +215,9 @@ static ssize_t rp2srv_show(struct device *dev, struct device_attribute *attr,
enum adf_cfg_service_type svc;
accel_dev = adf_devmgr_pci_to_accel_dev(to_pci_dev(dev));
+ if (!accel_dev)
+ return -EINVAL;
+
hw_data = GET_HW_DATA(accel_dev);
if (accel_dev->sysfs.ring_num == UNSET_RING_NUM)
--
2.43.0
