The sysfs file for the driver was being created _after_ the device was
announced to userspace, causing a race with any tools looking for sysfs
files.
Fix the race by using the default attribute group for the class.
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Calling dev_set_name with a single paramter causes it to be handled as a
format string. Many callers are passing potentially dynamic string
content, so use "%s" in those cases to avoid any potential accidents,
including wrappers like device_create*() and bdi_register().
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Warnings reported by checkpatch.pl have been fixed.
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(Life cycle of timed output device driver)
1) register the device as the timed output
2) enable() ops is called via the sysfs
timeout > 0 : timer is activated and device is turned on
timeout = 0 : timer is cancelled and device is off
3) unregister the timed output device if not used any more
So the registered device should be disabled explicitly when the module is removed.
('disabled' means the timer is stopped and the device is turned off)
Rather than implementing that code in each driver,
just call enable() with timeout = 0 to clean up the driver.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Cc: Mike Lockwood <lockwood@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The timed output device never previously checked the return value of sscanf,
resulting in an uninitialized int being passed to enable() if input value
was invalid.
Signed-off-by: Mike Lockwood <lockwood@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This reverts commit b0a0ccfad8.
Turns out I was wrong, we want these in the tree.
Note, I've disabled the drivers from the build at the moment, so other
patches can be applied to fix some build issues due to internal api
changes since the code was removed from the tree.
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
These drivers are no longer being developed and the original authors
seem to have abandonded them and hence, do not want them in the mainline
kernel tree.
So sad :(
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
