[1/2] net: fsl: Don't use NO_IRQ to check return value of irq_of_parse_and_map()

Message ID 1448539186-5756-1-git-send-email-broonie@kernel.org
State New
Headers show
Series
  • [1/2] net: fsl: Don't use NO_IRQ to check return value of irq_of_parse_and_map()
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Commit Message

Mark Brown Nov. 26, 2015, 11:59 a.m.
This driver can be built on arm64 but relies on NO_IRQ to check the return
value of irq_of_parse_and_map() which fails to build on arm64 because the
architecture does not provide a NO_IRQ. Fix this to correctly check the
return value of irq_of_parse_and_map().

Even on ARM systems where the driver was previously used the check was
broken since on ARM NO_IRQ is -1 but irq_of_parse_and_map() returns 0 on
error.

Signed-off-by: Mark Brown <broonie@kernel.org>

---
 drivers/net/ethernet/freescale/gianfar.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

-- 
2.6.2

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Patch

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 67b1850c034e..4ce60e0c8341 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -647,9 +647,9 @@  static int gfar_parse_group(struct device_node *np,
 	if (model && strcasecmp(model, "FEC")) {
 		gfar_irq(grp, RX)->irq = irq_of_parse_and_map(np, 1);
 		gfar_irq(grp, ER)->irq = irq_of_parse_and_map(np, 2);
-		if (gfar_irq(grp, TX)->irq == NO_IRQ ||
-		    gfar_irq(grp, RX)->irq == NO_IRQ ||
-		    gfar_irq(grp, ER)->irq == NO_IRQ)
+		if (!gfar_irq(grp, TX)->irq ||
+		    !gfar_irq(grp, RX)->irq ||
+		    !gfar_irq(grp, ER)->irq)
 			return -EINVAL;
 	}