Ben Hutchings 8d272f9af5 cdc-wdm: Fix more races on the read path ... commit 711c68b3c0 upstream. We must not allow the input buffer length to change while we're shuffling the buffer contents. We also mustn't clear the WDM_READ flag after more data might have arrived. Therefore move both of these into the spinlocked region at the bottom of wdm_read(). When reading desc->length without holding the iuspin lock, use ACCESS_ONCE() to ensure the compiler doesn't re-read it with inconsistent results. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Tested-by: Bjørn Mork <bjorn@mork.no> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2012-04-02 09:52:31 -07:00
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cdc-acm.c	usb: cdc-acm: Fix acm_tty_hangup() vs. acm_tty_close() race	2012-01-12 11:29:46 -08:00
cdc-acm.h	USB: cdc_acm: Fix oops when Droids MuIn LCD is connected	2011-05-11 15:14:28 -07:00
cdc-wdm.c	cdc-wdm: Fix more races on the read path	2012-04-02 09:52:31 -07:00
Kconfig	USB: add USB test and measurement class driver	2008-10-17 14:40:51 -07:00
Makefile	USB: add USB test and measurement class driver	2008-10-17 14:40:51 -07:00
usblp.c	usb/class: use printk_ratelimited() instead of printk_ratelimit()	2011-07-01 14:43:24 -07:00
usbtmc.c	USB: use usb_endpoint_maxp() instead of le16_to_cpu()	2011-08-23 09:47:40 -07:00