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| author | Alan Stern <stern@rowland.harvard.edu> | 2009-10-09 12:43:12 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-10-09 13:52:05 -0700 |
| commit | a4720c650b68a5fe7faed2edeb0ad12645f7ae63 (patch) | |
| tree | 829c32036a25279bb9aa1fc6077af5fa52f8f29e /include | |
| parent | ba6b702f85a61561d329c4c11d3ed95604924f9a (diff) | |
USB: serial: don't call release without attach
This patch (as1295) fixes a recently-added bug in the USB serial core.
If certain kinds of errors occur during probing, the core may call a
serial driver's release method without previously calling the attach
method. This causes some drivers (io_ti in particular) to perform an
invalid memory access.
The patch adds a new flag to keep track of whether or not attach has
been called.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Jean-Denis Girard <jd.girard@sysnux.pf>
CC: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/serial.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index c17eb64d7213..ce911ebf91e8 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -150,6 +150,7 @@ struct usb_serial { struct usb_interface *interface; unsigned char disconnected:1; unsigned char suspending:1; + unsigned char attached:1; unsigned char minor; unsigned char num_ports; unsigned char num_port_pointers; |