drm/mcde: Fix an uninitialized variable

We never set "vblank" to "false".

Current versions of GCC will initialize it to zero automatically at
certain optimization levels so that's probably why this didn't show up
in testing.

Fixes: 5fc537bfd000 ("drm/mcde: Add new driver for ST-Ericsson MCDE")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190529113458.GG19119@mwanda

diff --git a/drivers/gpu/drm/mcde/mcde_display.c b/drivers/gpu/drm/mcde/mcde_display.c
index f3ef108a41d9490bec0ad524d2aa53d8c1979d4a..751454ae3cd10e473978393426dd1922d9e84d7e 100644 (file)
--- a/drivers/gpu/drm/mcde/mcde_display.c
+++ b/drivers/gpu/drm/mcde/mcde_display.c
@@ -65,7 +65,7 @@ enum mcde_dsi_formatter {
 void mcde_display_irq(struct mcde *mcde)
 {
        u32 mispp, misovl, mischnl;
-       bool vblank;
+       bool vblank = false;
 
        /* Handle display IRQs */
        mispp = readl(mcde->regs + MCDE_MISPP);