diff options
| author | Vladimir Zapolskiy <vz@mleia.com> | 2015-12-02 09:12:13 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-12-03 23:02:24 +0300 |
| commit | 39198ec98751477313f30569b935503b216f85d0 (patch) | |
| tree | 2b471eb1cabc4aa846a1f7179b7297f4e208fbdc | |
| parent | 4eaf3b84f2881c9c028f1d5e76c52ab575fe3a66 (diff) | |
| download | linux-39198ec98751477313f30569b935503b216f85d0.tar.xz | |
net: lpc_eth: remove irq > NR_IRQS check from probe()
If the driver is used on an ARM platform with SPARSE_IRQ defined,
semantics of NR_IRQS is different (minimal value of virtual irqs) and
by default it is set to 16, see arch/arm/include/asm/irq.h.
This value may be less than the actual number of virtual irqs, which
may break the driver initialization. The check removal allows to use
the driver on such a platform, and, if irq controller driver works
correctly, the check is not needed on legacy platforms.
Fixes a runtime problem:
lpc-eth 31060000.ethernet: error getting resources.
lpc_eth: lpc-eth: not found (-6).
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/nxp/lpc_eth.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c index b159ef8303cc..057665180f13 100644 --- a/drivers/net/ethernet/nxp/lpc_eth.c +++ b/drivers/net/ethernet/nxp/lpc_eth.c @@ -1326,7 +1326,7 @@ static int lpc_eth_drv_probe(struct platform_device *pdev) /* Get platform resources */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); - if ((!res) || (irq < 0) || (irq >= NR_IRQS)) { + if (!res || irq < 0) { dev_err(&pdev->dev, "error getting resources.\n"); ret = -ENXIO; goto err_exit; |