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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: David Airlie <airlied@linux.ie>,
	kernel-janitors@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [PATCH] drm/mcde: Fix an uninitialized variable
Date: Wed, 29 May 2019 11:34:58 +0000	[thread overview]
Message-ID: <20190529113458.GG19119@mwanda> (raw)

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>
---
 drivers/gpu/drm/mcde/mcde_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mcde/mcde_display.c b/drivers/gpu/drm/mcde/mcde_display.c
index f3ef108a41d9..751454ae3cd1 100644
--- 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);
-- 
2.20.1

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: David Airlie <airlied@linux.ie>,
	kernel-janitors@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [PATCH] drm/mcde: Fix an uninitialized variable
Date: Wed, 29 May 2019 14:34:58 +0300	[thread overview]
Message-ID: <20190529113458.GG19119@mwanda> (raw)

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>
---
 drivers/gpu/drm/mcde/mcde_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mcde/mcde_display.c b/drivers/gpu/drm/mcde/mcde_display.c
index f3ef108a41d9..751454ae3cd1 100644
--- 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);
-- 
2.20.1

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             reply	other threads:[~2019-05-29 11:34 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29 11:34 Dan Carpenter [this message]
2019-05-29 11:34 ` [PATCH] drm/mcde: Fix an uninitialized variable Dan Carpenter
2019-06-13  9:58 ` Linus Walleij
2019-06-13  9:58   ` Linus Walleij

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