linux-kernel - [PATCH v2] mfd: wm8994: silence bogus warning in wm8994_device

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Message-id: <007101ce0f15$7a726410$6f572c30$%han@samsung.com>
Date:	Wed, 20 Feb 2013 11:53:36 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Mark Brown' <broonie@...nsource.wolfsonmicro.com>
Cc:	'Samuel Ortiz' <sameo@...ux.intel.com>,
	patches@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org,
	'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH v2] mfd: wm8994: silence bogus warning in wm8994_device_init()

'patch_regs' cannot be used uninitialized in wm8994_device_init(),
because 'patch_regs' was already guarded by 'regmap_patch'.
Thus, that's a bogus warning.

Without this patch, the build warning happens as below:

drivers/mfd/wm8994-core.c: In function 'wm8994_i2c_probe':
drivers/mfd/wm8994-core.c:595:7: warning: 'patch_regs' may be used uninitialized in this function [-Wuninitialized]
drivers/mfd/wm8994-core.c:408:14: note: 'patch_regs' was declared here

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/mfd/wm8994-core.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 803e93f..97e929e 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -405,7 +405,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
 	struct regmap_config *regmap_config;
 	const struct reg_default *regmap_patch = NULL;
 	const char *devname;
-	int ret, i, patch_regs;
+	int ret, i, patch_regs = 0;
 	int pulls = 0;
 
 	if (dev_get_platdata(wm8994->dev)) {
-- 
1.7.2.5


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