On Fri, Mar 12, 2021 at 11:22:02AM -0500, Tong Zhang wrote:
> adf_vf_isr_resource_alloc() is not unwinding correctly when error
> happens and it trys to release uninitialized resources.
> To fix this, only release initialized resources.
>
> [ 1.792845] Trying to free already-free IRQ 11
> [ 1.793091] WARNING: CPU: 0 PID: 182 at kernel/irq/manage.c:1821 free_irq+0x202/0x380
> [ 1.801340] Call Trace:
> [ 1.801477] adf_vf_isr_resource_free+0x32/0xb0 [intel_qat]
> [ 1.801785] adf_vf_isr_resource_alloc+0x14d/0x150 [intel_qat]
> [ 1.802105] adf_dev_init+0xba/0x140 [intel_qat]
>
> Signed-off-by: Tong Zhang <ztong0001@xxxxxxxxx>
> Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
I would add also a Fixes tag:
Fixes: dd0f368398ea ("crypto: qat - Add qat dh895xcc VF driver")
Minor nit, typo in commit message: dont --> don't/do not
Apart from that
Acked-by: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx>
--
Giovanni
> ---
> drivers/crypto/qat/qat_common/adf_vf_isr.c | 17 +++++++++++++----
> 1 file changed, 13 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/crypto/qat/qat_common/adf_vf_isr.c b/drivers/crypto/qat/qat_common/adf_vf_isr.c
> index 38d316a42ba6..888388acb6bd 100644
> --- a/drivers/crypto/qat/qat_common/adf_vf_isr.c
> +++ b/drivers/crypto/qat/qat_common/adf_vf_isr.c
> @@ -261,17 +261,26 @@ int adf_vf_isr_resource_alloc(struct adf_accel_dev *accel_dev)
> goto err_out;
>
> if (adf_setup_pf2vf_bh(accel_dev))
> - goto err_out;
> + goto err_disable_msi;
>
> if (adf_setup_bh(accel_dev))
> - goto err_out;
> + goto err_cleanup_pf2vf_bh;
>
> if (adf_request_msi_irq(accel_dev))
> - goto err_out;
> + goto err_cleanup_bh;
>
> return 0;
> +
> +err_cleanup_bh:
> + adf_cleanup_bh(accel_dev);
> +
> +err_cleanup_pf2vf_bh:
> + adf_cleanup_pf2vf_bh(accel_dev);
> +
> +err_disable_msi:
> + adf_disable_msi(accel_dev);
> +
> err_out:
> - adf_vf_isr_resource_free(accel_dev);
> return -EFAULT;
> }
> EXPORT_SYMBOL_GPL(adf_vf_isr_resource_alloc);
> --
> 2.25.1
>
