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SubjectRe: [PATCH] drivers: avoid use after free of a pinctrl context pointer
On Wed, Jan 16, 2013 at 05:22:34PM +0100, Guennadi Liakhovetski wrote:
> During probing, pinctrl context is allocated and assigned to the struct
> device::pins pointer. If probing fails or if the driver is later unbound
> and re-probed again, the memory is freed, but the pointer is not cleared.
> On a repeated probing attempt a non-NULL pointer indicates an already
> allocated context, which then gets used. To avoid this the pointer must
> be cleared.
> Signed-off-by: Guennadi Liakhovetski <>
> ---
> drivers/base/dd.c | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)

This can't go through my tree, as it breaks the build. Please send it
to whereever the pinctrl code is coming from.


greg k-h

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