From: Dan Carpenter <dan.carpenter@oracle.com>
To: Wolfram Sang <wsa@the-dreams.de>
Cc: Jiang Liu <jiang.liu@huawei.com>, Toshi Kani <toshi.kani@hp.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Yinghai Lu <yinghai@kernel.org>,
linux-i2c@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] i2c-scmi: remove some bogus NULL checks
Date: Sat, 19 Oct 2013 11:46:22 +0300 [thread overview]
Message-ID: <20131019084622.GA9312@longonot.mountain> (raw)
"obj" can't be NULL here.
We already know that "pkg->package.elements" gives us a valid pointer
so the next pointer after that is also non-NULL.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c
index c447e8d..5992355 100644
--- a/drivers/i2c/busses/i2c-scmi.c
+++ b/drivers/i2c/busses/i2c-scmi.c
@@ -223,7 +223,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags,
goto out;
obj = pkg->package.elements + 1;
- if (obj == NULL || obj->type != ACPI_TYPE_INTEGER) {
+ if (obj->type != ACPI_TYPE_INTEGER) {
ACPI_ERROR((AE_INFO, "Invalid argument type"));
result = -EIO;
goto out;
@@ -235,7 +235,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags,
case I2C_SMBUS_BYTE:
case I2C_SMBUS_BYTE_DATA:
case I2C_SMBUS_WORD_DATA:
- if (obj == NULL || obj->type != ACPI_TYPE_INTEGER) {
+ if (obj->type != ACPI_TYPE_INTEGER) {
ACPI_ERROR((AE_INFO, "Invalid argument type"));
result = -EIO;
goto out;
@@ -246,7 +246,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags,
data->byte = obj->integer.value;
break;
case I2C_SMBUS_BLOCK_DATA:
- if (obj == NULL || obj->type != ACPI_TYPE_BUFFER) {
+ if (obj->type != ACPI_TYPE_BUFFER) {
ACPI_ERROR((AE_INFO, "Invalid argument type"));
result = -EIO;
goto out;
next reply other threads:[~2013-10-19 8:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-19 8:46 Dan Carpenter [this message]
[not found] ` <20131019084622.GA9312-dZEljifmRObu9KfB+GxooP8+0UxHXcjY@public.gmane.org>
2013-10-30 16:02 ` [patch] i2c-scmi: remove some bogus NULL checks Wolfram Sang
2013-10-30 16:39 ` Dan Carpenter
2013-10-31 11:57 ` Wolfram Sang
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