CHROMIUM: drm/exynos: dp: Fix a bug that IRQ number should be signed

Negative IRQ value is used to represent error.

Signed-off-by: Vic Yang <victoryang@chromium.org>
BUG=chrome-os-partner:16280
TEST=Boot on spring and see bad IRQ translated into driver error.

Change-Id: I8777c0531dceab6c952a50988764be949729e598
Reviewed-on: https://gerrit.chromium.org/gerrit/40364
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Tested-by: Vic Yang <victoryang@chromium.org>
Commit-Queue: Vic Yang <victoryang@chromium.org>

diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h
index 85a081212593fce24c5d69ecdf8a51ddad34c22b..35726191b3b9e1d28ee47ac8956fe5b1fe179f2e 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_dp_core.h
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.h
@@ -43,7 +43,7 @@ struct exynos_dp_device {
        struct drm_device       *drm_dev;
        struct resource         *res;
        struct clk              *clock;
-       unsigned int            irq;
+       int                     irq;
        void __iomem            *reg_base;
        int                     hpd_gpio;