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crypto: qat - add NULL pointer check

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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@intel.com>
Reviewed-by: Ahsan Atta <ahsan.atta@intel.com>
Reviewed-by: David Guckian <david.guckian@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Giovanni Cabiddu 2023-11-28 19:17:25 +00:00 committed by Herbert Xu
parent 487caa8d5e
commit a643212c9f
1 changed files with 3 additions and 0 deletions
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3
drivers/crypto/intel/qat/qat_common/adf_sysfs.c
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@ -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)