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authorAlan Stern <stern@rowland.harvard.edu>2009-10-09 12:43:12 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2009-10-09 13:52:05 -0700
commita4720c650b68a5fe7faed2edeb0ad12645f7ae63 (patch)
tree829c32036a25279bb9aa1fc6077af5fa52f8f29e /include/linux/usb
parentba6b702f85a61561d329c4c11d3ed95604924f9a (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/linux/usb')
-rw-r--r--include/linux/usb/serial.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index c17eb64d721..ce911ebf91e 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;