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Present in _remove but not _probe. > > > > > > Also add platform_device_put on failure as of_platform_device_create() platform_device_put() > > > increases the reference count and needs platform_device_put on failure. > > > Requires placing the pointer in the struct for the _remove function. > > > While at it, use platform_get/set_drvdata as there's no need for using a > > > device pointer for that. Needn't "While at ..." > > > > > > Fixes: ad80da658bbc ("dmaengine: Driver support for FSL RaidEngine device.") > > > Assisted-by: opencode:hy3-free > > > Signed-off-by: Rosen Penev > > > --- > > > drivers/dma/fsl_raid.c | 20 ++++++++++++++------ > > > drivers/dma/fsl_raid.h | 1 + > > > 2 files changed, 15 insertions(+), 6 deletions(-) > > > > > > diff --git a/drivers/dma/fsl_raid.c b/drivers/dma/fsl_raid.c > > > index 2d54879cd6e1..cabc79e61e85 100644 > > > --- a/drivers/dma/fsl_raid.c > > > +++ b/drivers/dma/fsl_raid.c > > > @@ -661,8 +661,7 @@ static int fsl_re_chan_probe(struct platform_device *ofdev, > > > chan_ofdev = of_platform_device_create(np, NULL, dev); > > > if (!chan_ofdev) { > > > dev_err(dev, "Not able to create ofdev for jr %d\n", q); > > > - ret = -EINVAL; > > > - goto err_free; > > > + return -EINVAL; > > > } > > > > > > /* read reg property from dts */ > > > @@ -688,17 +687,19 @@ static int fsl_re_chan_probe(struct platform_device *ofdev, > > > chandev = &chan_ofdev->dev; > > > tasklet_setup(&chan->irqtask, fsl_re_dequeue); > > > > > > + platform_set_drvdata(chan_ofdev, chan); > > > > Previous patch already set, why need set again? > This is because request_irq uses platform_get_drvdata. > > On further review, I think chan should be passed directly. Yes Frank > > > > Frank > > > ret = request_irq(chan->irq, fsl_re_isr, 0, chan->name, chan_ofdev); > > > if (ret) { > > > dev_err(dev, "Unable to register interrupt for JR %d\n", q); > > > ret = -EINVAL; > > > - goto err_free; > > > + goto err_free_tasklet; > > > } > > > > > > re_priv->re_jrs[q] = chan; > > > chan->chan.device = dma_dev; > > > chan->chan.private = chan; > > > chan->dev = chandev; > > > + chan->ofdev = chan_ofdev; > > > chan->re_dev = re_priv; > > > > > > spin_lock_init(&chan->desc_lock); > > > @@ -712,7 +713,7 @@ static int fsl_re_chan_probe(struct platform_device *ofdev, > > > if (!chan->inb_ring_virt_addr) { > > > dev_err(dev, "No dma memory for inb_ring_virt_addr\n"); > > > ret = -ENOMEM; > > > - goto err_free; > > > + goto err_free_irq; > > > } > > > > > > chan->oub_ring_virt_addr = dma_pool_alloc(chan->re_dev->hw_desc_pool, > > > @@ -744,8 +745,6 @@ static int fsl_re_chan_probe(struct platform_device *ofdev, > > > out_be32(&chan->jrregs->jr_config_1, > > > FSL_RE_CFG1_CBSI | FSL_RE_CFG1_CBS0 | status); > > > > > > - platform_set_drvdata(chan_ofdev, chan); > > > - > > > /* Enable RE/CHAN */ > > > out_be32(&chan->jrregs->jr_command, FSL_RE_ENABLE); > > > > > > @@ -754,7 +753,12 @@ static int fsl_re_chan_probe(struct platform_device *ofdev, > > > err_free_1: > > > dma_pool_free(chan->re_dev->hw_desc_pool, chan->inb_ring_virt_addr, > > > chan->inb_phys_addr); > > > +err_free_irq: > > > + free_irq(chan->irq, chan_ofdev); > > > +err_free_tasklet: > > > + tasklet_kill(&chan->irqtask); > > > err_free: > > > + of_platform_device_destroy(chan_ofdev); > > > return ret; > > > } > > > > > > @@ -892,6 +896,8 @@ static int fsl_re_probe(struct platform_device *ofdev) > > > > > > static void fsl_re_remove_chan(struct fsl_re_chan *chan) > > > { > > > + free_irq(chan->irq, chan->ofdev); > > > + > > > tasklet_kill(&chan->irqtask); > > > > > > dma_pool_free(chan->re_dev->hw_desc_pool, chan->inb_ring_virt_addr, > > > @@ -899,6 +905,8 @@ static void fsl_re_remove_chan(struct fsl_re_chan *chan) > > > > > > dma_pool_free(chan->re_dev->hw_desc_pool, chan->oub_ring_virt_addr, > > > chan->oub_phys_addr); > > > + > > > + of_platform_device_destroy(chan->ofdev); > > > } > > > > > > static void fsl_re_remove(struct platform_device *ofdev) > > > diff --git a/drivers/dma/fsl_raid.h b/drivers/dma/fsl_raid.h > > > index adbfede330a7..34d362803610 100644 > > > --- a/drivers/dma/fsl_raid.h > > > +++ b/drivers/dma/fsl_raid.h > > > @@ -270,6 +270,7 @@ struct fsl_re_chan { > > > struct list_head active_q; /* already issued on hw, not completed */ > > > struct list_head submit_q; > > > struct list_head free_q; /* alloc available queue */ > > > + struct platform_device *ofdev; > > > struct device *dev; > > > struct fsl_re_drv_private *re_dev; > > > struct dma_chan chan; > > > -- > > > 2.55.0 > > >