linux-kernel - Re: [PATCH v2 1/2] extcon: fix hang and extcon_get/set_cable

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Date:	Tue, 07 Jul 2015 17:04:24 +0300
From:	"Ivan T. Ivanov" <ivan.ivanov@...aro.org>
To:	Roger Quadros <rogerq@...com>
Cc:	cw00.choi@...sung.com, linux-omap@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v2 1/2] extcon: fix hang and
 extcon_get/set_cable_state().


On Tue, 2015-07-07 at 16:06 +0300, Roger Quadros wrote:
> Users of find_cable_index_by_name() will cause a kernel hang
> as the while loop counter is never incremented and end condition
> is never reached.
> 
> extcon_get_cable_state() and extcon_set_cable_state() are broken
> because they use cable index instead of cable id. This causes
> the first cable state (cable.0) to be always invalid in sysfs
> or extcon_get_cable_state() users.
> 
> Introduce a new function find_cable_id_by_name() that fixes
> both of the above issues.
> 
> Fixes: commit 73b6ecdb93e8 ("extcon: Redefine the unique id of supported external connectors without 'enum extcon' type")
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Roger Quadros <rogerq@...com>
> ---

Thank you. It is fine now. For both patches.

Tested-by: Ivan T. Ivanov <ivan.ivanov@...aro.org>
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