On Mon, Mar 05, 2001 at 03:37:04PM +0300, Andrey Panin wrote:
> Attached patch (2.4.2-ac11) makes some changes in serial driver:
> adds ioremap() return code checks, removes panic() calls
> and adds better error handling in start_pci_pnp_board() function.
Did you test it ?
> diff -u /linux.vanilla/drivers/char/serial.c /linux/drivers/char/serial.c
> --- /linux.vanilla/drivers/char/serial.c Thu Mar 1 20:15:43 2001
> +++ /linux/drivers/char/serial.c Fri Mar 2 00:10:29 2001
> @@ -3876,7 +3876,10 @@
> return 0;
> }
> req->io_type = SERIAL_IO_MEM;
> - req->iomem_base = ioremap(port, board->uart_offset);
> + if ((req->iomem_base = ioremap(port, board->uart_offset))) {
> + printk(KERN_ERR "serial: Couldn's remap IO memory at %#lx\n", port);
> + return 1;
> + }
This seems wrong. ioremap returns NULL in case of failure.
-
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