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crypto: qat - don't release uninitialized resources 

adf_vf_isr_resource_alloc() is not unwinding correctly when error
happens and it want 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@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Fixes: dd0f368398 ("crypto: qat - Add qat dh895xcc VF driver")
Acked-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tong Zhang 2021-03-18 23:39:59 -04:00 committed by Herbert Xu
parent 5b0ef7990e
commit b66accaab3
1 changed files with 13 additions and 4 deletions
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17
drivers/crypto/qat/qat_common/adf_vf_isr.c
View File

@ -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);