From: Dan Carpenter <dan.carpenter@oracle.com>
To: Eric Piel <eric.piel@tremplin-utc.net>
Cc: Darren Hart <dvhart@infradead.org>,
platform-driver-x86@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] hp_accel: Silence an uninitialized variable warning
Date: Fri, 15 Apr 2016 17:47:20 +0300 [thread overview]
Message-ID: <20160415144720.GF8953@mwanda> (raw)
If acpi_evaluate_integer() fails then "lret" isn't initialized. I've
tweaked the error handling to avoid this issue.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c
index 10ce6cb..746918e 100644
--- a/drivers/platform/x86/hp_accel.c
+++ b/drivers/platform/x86/hp_accel.c
@@ -127,8 +127,10 @@ static int lis3lv02d_acpi_read(struct lis3lv02d *lis3, int reg, u8 *ret)
arg0.integer.value = reg;
status = acpi_evaluate_integer(dev->handle, "ALRD", &args, &lret);
+ if (ACPI_FAILURE(status))
+ return -EINVAL;
*ret = lret;
- return (status != AE_OK) ? -EINVAL : 0;
+ return 0;
}
/**
next reply other threads:[~2016-04-15 14:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-15 14:47 Dan Carpenter [this message]
2016-04-15 15:29 ` [patch] hp_accel: Silence an uninitialized variable warning Darren Hart
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