Messages in this thread Patch in this message | | | Date | Tue, 16 Sep 2003 10:41:19 -0700 | From | Greg KH <> | Subject | Re: [Bug 1227] New: Oops with SynCE and Compaq iPAQ 3600 |
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On Mon, Sep 15, 2003 at 07:46:55AM -0700, Martin J. Bligh wrote: > http://bugme.osdl.org/show_bug.cgi?id=1227 > > Unable to handle kernel NULL pointer dereference at virtual address 0000010c > printing eip: > e08794d4 > *pde = 00000000 > Oops: 0000 [#1] > PREEMPT > CPU: 0 > EIP: 0060:[<e08794d4>] Not tainted VLI > EFLAGS: 00010297 > EIP is at ipaq_read_bulk_callback+0xca/0x282 [ipaq] > eax: 00000006 ebx: 00000000 ecx: de7cd600 edx: 00000006 > esi: de9fc200 edi: df4f9600 ebp: 00000000 esp: c038dee0 > ds: 007b es: 007b ss:0068 > Process swapper (pid: 0, threadinfo=c038c000 task=c03169c0) > Stack: 00000046 00000086 de9fc200 de9fc200 00000006 dd273000 de7cd600 de9fc200 > c038dfa4 de9fc200 df765c00 e08421ea de9fc200 c038dfa4 c038c000 00000286 > e082ed9a df765c00 de9fc200 c038dfa4 df765df8 c038dfa4 df765c00 00000001 > Call Trace: > [<e08421ea>] usb_hcd_giveback_urb+0x25/0x39 [usbcore] > [<e082ed9a>] uhci_finish_completion+0x6a/0xac [uhci_hcd] > [<e0842234>] usb_hcd_irq+0x36/0x5f [usbcore] > [<c010c633>] handle_IRQ_event+0x3a/0x64 > [<c010c999>] do_IRQ+0x94/0x135 > [<c0107000>] _stext+0x0/0x5d > [<c02d404c>] common_interrupt+0x18/0x20 > [<c0107000>] _stext+0x0/0x5d > [<c012007b>] __wake_up_common+0x31/0x50 > [<c0109041>] default_idle+0x23/0x26 > [<c010909f>] cpu_idle+0x2c/0x35 > [<c038e6cc>] start_kernel+0x17d/0x1ab > [<c038e426>] unknown_bootoption+0x0/0xfd
Does the following patch solve this oops?
thanks,
greg k-h
--- a/drivers/usb/serial/ipaq.c Wed Sep 3 08:47:21 2003 +++ b/drivers/usb/serial/ipaq.c Tue Sep 16 10:34:30 2003 @@ -341,7 +341,7 @@ usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, data); tty = port->tty; - if (urb->actual_length) { + if (tty && urb->actual_length) { for (i = 0; i < urb->actual_length ; ++i) { /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */ if(tty->flip.count >= TTY_FLIPBUF_SIZE) { - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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