From 86f9f2c81c44223b1be129d0b15cf6edac2a5278 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Lothar=20Wa=C3=9Fmann?= Date: Wed, 7 Dec 2011 21:59:28 +0000 Subject: [PATCH] net/fec: don't request invalid IRQ MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit prevent calling request_irq() with a known invalid IRQ number and preserve the return value of the platform_get_irq() function Signed-off-by: Lothar Waßmann Acked-by: Shawn Guo Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fec.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index 7ef408fd322a..e2b5ce6efa20 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -1575,8 +1575,12 @@ fec_probe(struct platform_device *pdev) for (i = 0; i < FEC_IRQ_NUM; i++) { irq = platform_get_irq(pdev, i); - if (i && irq < 0) - break; + if (irq < 0) { + if (i) + break; + ret = irq; + goto failed_irq; + } ret = request_irq(irq, fec_enet_interrupt, IRQF_DISABLED, pdev->name, ndev); if (ret) { while (--i >= 0) { -- 2.39.2