[PATCH] pinctrl: bcm2835: Fix memory leak in error path

[Eric Anholt]

Stefan Wahren <stefan.wahren at i2se.com> writes:

> In case of an invalid pin value bcm2835_pctl_dt_node_to_map()
> would leak the pull configs of already assigned pins.
> So avoid this by calling the free map function in error case.
>
> Signed-off-by: Stefan Wahren <stefan.wahren at i2se.com>
> Fixes: e1b2dc70cd5b ("pinctrl: add bcm2835 driver")

Reviewed-by: Eric Anholt <eric at anholt.net>
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