tree 8e62661a25ee3f260cbedb79f58b84470b60b0e0
parent 2b0234a369b8b630ad34655646d0499924085bbb
author Manu Gautam <mgautam@codeaurora.org> 1315559157 +0530
committer Bryan Huntsman <bryanh@codeaurora.org> 1317661136 -0700

usb: diag: Check for USB connect state in usb_diag_read/write

With new composition framework unbind function of the driver
is called during composition switch. This results in NULL
pointer dereference in usb_diag_read/write while trying to
access priv_usb field of usb_diag_ch.
WIth the previous compositon framework unbind function was not
called, hence, this issue was also not observed.

Signed-off-by: Manu Gautam <mgautam@codeaurora.org>