From 939456ac51dd0b6b2b5653823b5655a790e72769 Mon Sep 17 00:00:00 2001 From: Folkert van Heusden Date: Mon, 26 Mar 2007 21:47:23 -0800 Subject: [PATCH] baycom_ser_fdx: also allow i/o ports >= 0x1000 and enhanced failure logging The baycom_ser_fdx driver did not allow i/o ports >= 0x1000. Now that there are pci cards (with rs232 ports) which use for example 0xb800 this limit should not exists. Also, for non kernel coders find the cause of problems was challenging so I added extra logging. Signed-off-by: Folkert van Heusden Cc: Jeff Garzik Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/hamradio/baycom_ser_fdx.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/net/hamradio/baycom_ser_fdx.c b/drivers/net/hamradio/baycom_ser_fdx.c index 30baf6ecfc..17ac6975d7 100644 --- a/drivers/net/hamradio/baycom_ser_fdx.c +++ b/drivers/net/hamradio/baycom_ser_fdx.c @@ -415,11 +415,18 @@ static int ser12_open(struct net_device *dev) if (!dev || !bc) return -ENXIO; - if (!dev->base_addr || dev->base_addr > 0x1000-SER12_EXTENT || - dev->irq < 2 || dev->irq > 15) + if (!dev->base_addr || dev->base_addr > 0xffff-SER12_EXTENT || + dev->irq < 2 || dev->irq > NR_IRQS) { + printk(KERN_INFO "baycom_ser_fdx: invalid portnumber (max %u) " + "or irq (2 <= irq <= %d)\n", + 0xffff-SER12_EXTENT, NR_IRQS); return -ENXIO; - if (bc->baud < 300 || bc->baud > 4800) + } + if (bc->baud < 300 || bc->baud > 4800) { + printk(KERN_INFO "baycom_ser_fdx: invalid baudrate " + "(300...4800)\n"); return -EINVAL; + } if (!request_region(dev->base_addr, SER12_EXTENT, "baycom_ser_fdx")) { printk(KERN_WARNING "BAYCOM_SER_FSX: I/O port 0x%04lx busy \n", dev->base_addr); -- 2.39.5