From 58a3b92d33d289e2f3390b40a2c5cfd7f32cfe7a Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 24 Sep 2014 13:30:24 +0200
Subject: [PATCH] gpio: dwapb: fix pointer to integer cast

The statements BUG_ON(ctx == 0) was implicitly casting a pointer
to an integer for comparison. Do this with a bool test instead
to get away from sparse warnings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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