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gianfar: fix signedness issue 

irq_of_parse_and_map() has an unsigned return type.
Testing for a negative error value doesn't work here.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Kaiser 2010-11-15 10:59:42 +00:00 committed by David S. Miller
parent 870634b0b6
commit 28cb6ccd2c
1 changed files with 3 additions and 4 deletions
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7
drivers/net/gianfar.c
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@ -577,12 +577,11 @@ static int gfar_parse_group(struct device_node *np,
irq_of_parse_and_map(np, 1);
priv->gfargrp[priv->num_grps].interruptError =
irq_of_parse_and_map(np,2);
if (priv->gfargrp[priv->num_grps].interruptTransmit < 0 ||
priv->gfargrp[priv->num_grps].interruptReceive < 0 ||
priv->gfargrp[priv->num_grps].interruptError < 0) {
if (priv->gfargrp[priv->num_grps].interruptTransmit == NO_IRQ ||
priv->gfargrp[priv->num_grps].interruptReceive == NO_IRQ ||
priv->gfargrp[priv->num_grps].interruptError == NO_IRQ)
return -EINVAL;
}
}
priv->gfargrp[priv->num_grps].grp_id = priv->num_grps;
priv->gfargrp[priv->num_grps].priv = priv;