From: Folkert van Heusden <[EMAIL PROTECTED]>
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 <[EMAIL PROTECTED]>
Cc: Jeff Garzik <[EMAIL PROTECTED]>
Cc: Alan Cox <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
drivers/net/hamradio/baycom_ser_fdx.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff -puN
drivers/net/hamradio/baycom_ser_fdx.c~baycom_ser_fdx-also-allow-i-o-ports-=-0x1000-and-enhanced
drivers/net/hamradio/baycom_ser_fdx.c
---
a/drivers/net/hamradio/baycom_ser_fdx.c~baycom_ser_fdx-also-allow-i-o-ports-=-0x1000-and-enhanced
+++ a/drivers/net/hamradio/baycom_ser_fdx.c
@@ -413,11 +413,18 @@ static int ser12_open(struct net_device
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);
_
-
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