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Message-ID: <20240905201506.12679-3-rosenp@gmail.com>
Date: Thu, 5 Sep 2024 13:14:59 -0700
From: Rosen Penev <rosenp@...il.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
linux-kernel@...r.kernel.org,
jacob.e.keller@...el.com,
horms@...nel.org,
sd@...asysnail.net,
chunkeey@...il.com
Subject: [PATCHv3 net-next 2/9] net: ibm: emac: manage emac_irq with devm
It's the last to go in remove. Safe to let devm handle it.
Also move request_irq to probe for clarity. It's removed in _remove not
close.
Use dev_err_probe instead of printk. Handles EPROBE_DEFER automatically.
Signed-off-by: Rosen Penev <rosenp@...il.com>
---
drivers/net/ethernet/ibm/emac/core.c | 27 +++++++++------------------
1 file changed, 9 insertions(+), 18 deletions(-)
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 348702f462bd..4e260abbaa56 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -1228,18 +1228,10 @@ static void emac_print_link_status(struct emac_instance *dev)
static int emac_open(struct net_device *ndev)
{
struct emac_instance *dev = netdev_priv(ndev);
- int err, i;
+ int i;
DBG(dev, "open" NL);
- /* Setup error IRQ handler */
- err = request_irq(dev->emac_irq, emac_irq, 0, "EMAC", dev);
- if (err) {
- printk(KERN_ERR "%s: failed to request IRQ %d\n",
- ndev->name, dev->emac_irq);
- return err;
- }
-
/* Allocate RX ring */
for (i = 0; i < NUM_RX_BUFF; ++i)
if (emac_alloc_rx_skb(dev, i)) {
@@ -1293,8 +1285,6 @@ static int emac_open(struct net_device *ndev)
return 0;
oom:
emac_clean_rx_ring(dev);
- free_irq(dev->emac_irq, dev);
-
return -ENOMEM;
}
@@ -1408,8 +1398,6 @@ static int emac_close(struct net_device *ndev)
emac_clean_tx_ring(dev);
emac_clean_rx_ring(dev);
- free_irq(dev->emac_irq, dev);
-
netif_carrier_off(ndev);
return 0;
@@ -3082,6 +3070,14 @@ static int emac_probe(struct platform_device *ofdev)
err = -ENODEV;
goto err_gone;
}
+
+ /* Setup error IRQ handler */
+ err = devm_request_irq(&ofdev->dev, dev->emac_irq, emac_irq, 0, "EMAC", dev);
+ if (err) {
+ dev_err_probe(&ofdev->dev, err, "failed to request IRQ %d", dev->emac_irq);
+ goto err_gone;
+ }
+
ndev->irq = dev->emac_irq;
/* Map EMAC regs */
@@ -3237,8 +3233,6 @@ static int emac_probe(struct platform_device *ofdev)
err_irq_unmap:
if (dev->wol_irq)
irq_dispose_mapping(dev->wol_irq);
- if (dev->emac_irq)
- irq_dispose_mapping(dev->emac_irq);
err_gone:
/* if we were on the bootlist, remove us as we won't show up and
* wake up all waiters to notify them in case they were waiting
@@ -3284,9 +3278,6 @@ static void emac_remove(struct platform_device *ofdev)
if (dev->wol_irq)
irq_dispose_mapping(dev->wol_irq);
- if (dev->emac_irq)
- irq_dispose_mapping(dev->emac_irq);
-
}
/* XXX Features in here should be replaced by properties... */
--
2.46.0
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