1. 2011-03-31 RE: gpio: pca953x: prevent freeing IRQ 0 on probe error linux-kernel H Hartley Sweeten 2. 2011-03-31 Re: gpio: pca953x: prevent freeing IRQ 0 on probe error linux-kernel Grant Likely 3. 2011-03-25 gpio: pca953x: prevent freeing IRQ 0 on probe error linux-kernel H Hartley Sweeten