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crypto: caam - request JR IRQ as the last step

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In order to avoid any risk of JR IRQ request being handled while some
of the resources used for that are not yet allocated move the code
requesting said IRQ to the endo of caam_jr_init().

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Spencer <christopher.spencer@sea.co.uk>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Horia Geantă <horia.geanta@nxp.com>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Andrey Smirnov 2019-08-20 13:23:50 -07:00 committed by Herbert Xu
parent a6c4194ead
commit d488dfd9b2
1 changed files with 15 additions and 19 deletions
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34
drivers/crypto/caam/jr.c
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@ -428,38 +428,26 @@ static int caam_jr_init(struct device *dev)
jrp = dev_get_drvdata(dev);
tasklet_init(&jrp->irqtask, caam_jr_dequeue, (unsigned long)dev);
/* Connect job ring interrupt handler. */
error = devm_request_irq(dev, jrp->irq, caam_jr_interrupt, IRQF_SHARED,
dev_name(dev), dev);
if (error) {
dev_err(dev, "can't connect JobR %d interrupt (%d)\n",
jrp->ridx, jrp->irq);
goto out_kill_deq;
}
error = caam_reset_hw_jr(dev);
if (error)
goto out_kill_deq;
return error;
error = -ENOMEM;
jrp->inpring = dmam_alloc_coherent(dev, sizeof(*jrp->inpring) *
JOBR_DEPTH, &inpbusaddr,
GFP_KERNEL);
if (!jrp->inpring)
goto out_kill_deq;
return -ENOMEM;
jrp->outring = dmam_alloc_coherent(dev, sizeof(*jrp->outring) *
JOBR_DEPTH, &outbusaddr,
GFP_KERNEL);
if (!jrp->outring)
goto out_kill_deq;
return -ENOMEM;
jrp->entinfo = devm_kcalloc(dev, JOBR_DEPTH, sizeof(*jrp->entinfo),
GFP_KERNEL);
if (!jrp->entinfo)
goto out_kill_deq;
return -ENOMEM;
for (i = 0; i < JOBR_DEPTH; i++)
jrp->entinfo[i].desc_addr_dma = !0;
@ -483,9 +471,17 @@ static int caam_jr_init(struct device *dev)
(JOBR_INTC_COUNT_THLD << JRCFG_ICDCT_SHIFT) |
(JOBR_INTC_TIME_THLD << JRCFG_ICTT_SHIFT));
return 0;
out_kill_deq:
tasklet_kill(&jrp->irqtask);
tasklet_init(&jrp->irqtask, caam_jr_dequeue, (unsigned long)dev);
/* Connect job ring interrupt handler. */
error = devm_request_irq(dev, jrp->irq, caam_jr_interrupt, IRQF_SHARED,
dev_name(dev), dev);
if (error) {
dev_err(dev, "can't connect JobR %d interrupt (%d)\n",
jrp->ridx, jrp->irq);
tasklet_kill(&jrp->irqtask);
}
return error;
}