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| author | Christophe Jaillet <christophe.jaillet@wanadoo.fr> | 2017-08-20 06:35:00 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-20 19:53:08 -0700 |
| commit | 138b57f0f893873badd86e33c2b1f7bbc0bab831 (patch) | |
| tree | 7c6c5333ad0329971a2e3f5af7a7a49a606879ef | |
| parent | c3168cabe1af2683475d0e3048220c04b7fa4f51 (diff) | |
| download | linux-138b57f0f893873badd86e33c2b1f7bbc0bab831.tar.bz2 | |
net: ibm: emac: Fix some error handling path in 'emac_probe()'
If 'irq_of_parse_and_map()' or 'of_address_to_resource()' fail, 'err' is
known to be 0 at this point.
So return -ENODEV instead in the first case and use 'of_iomap()' instead of
the equivalent 'of_address_to_resource()/ioremap()' combinaison in the 2nd
case.
Doing so, the 'rsrc_regs' field of the 'emac_instance struct' becomes
redundant and is removed.
While at it, turn a 'err != 0' test into an equivalent 'err' to be more
consistent.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/ibm/emac/core.c | 12 | ||||
| -rw-r--r-- | drivers/net/ethernet/ibm/emac/core.h | 1 |
2 files changed, 4 insertions, 9 deletions
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c index 95135d20458f..7feff2450ed6 100644 --- a/drivers/net/ethernet/ibm/emac/core.c +++ b/drivers/net/ethernet/ibm/emac/core.c @@ -3032,7 +3032,7 @@ static int emac_probe(struct platform_device *ofdev) /* Init various config data based on device-tree */ err = emac_init_config(dev); - if (err != 0) + if (err) goto err_free; /* Get interrupts. EMAC irq is mandatory, WOL irq is optional */ @@ -3040,18 +3040,14 @@ static int emac_probe(struct platform_device *ofdev) dev->wol_irq = irq_of_parse_and_map(np, 1); if (!dev->emac_irq) { printk(KERN_ERR "%pOF: Can't map main interrupt\n", np); + err = -ENODEV; goto err_free; } ndev->irq = dev->emac_irq; /* Map EMAC regs */ - if (of_address_to_resource(np, 0, &dev->rsrc_regs)) { - printk(KERN_ERR "%pOF: Can't get registers address\n", np); - goto err_irq_unmap; - } - // TODO : request_mem_region - dev->emacp = ioremap(dev->rsrc_regs.start, - resource_size(&dev->rsrc_regs)); + // TODO : platform_get_resource() and devm_ioremap_resource() + dev->emacp = of_iomap(np, 0); if (dev->emacp == NULL) { printk(KERN_ERR "%pOF: Can't map device registers!\n", np); err = -ENOMEM; diff --git a/drivers/net/ethernet/ibm/emac/core.h b/drivers/net/ethernet/ibm/emac/core.h index f10e156641d5..369de2cfb15b 100644 --- a/drivers/net/ethernet/ibm/emac/core.h +++ b/drivers/net/ethernet/ibm/emac/core.h @@ -167,7 +167,6 @@ struct emac_error_stats { struct emac_instance { struct net_device *ndev; - struct resource rsrc_regs; struct emac_regs __iomem *emacp; struct platform_device *ofdev; struct device_node **blist; /* bootlist entry */ |