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media: zd1301_demod: constify i2c_algorithm structure

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Check for i2c_algorithm structures that are only stored in
the algo field of an i2c_adapter structure. This field is
declared const, so i2c_algorithm structures that have this
property can be declared as const also.

This issue was identified using Coccinelle and the following
semantic patch:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct i2c_algorithm i@p = { ... };

@ok@
identifier r.i;
struct i2c_adapter e;
position p;
@@
e.algo = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct i2c_algorithm i = { ... };

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Gustavo A. R. Silva
2017-07-09 21:03:52 -04:00
committed by Mauro Carvalho Chehab
parent 28e83542cd
commit c51df136e5
1 changed files with 1 additions and 1 deletions
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2
drivers/media/dvb-frontends/zd1301_demod.c
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@@ -445,7 +445,7 @@ static u32 zd1301_demod_i2c_functionality(struct i2c_adapter *adapter)
return I2C_FUNC_I2C;
}
static struct i2c_algorithm zd1301_demod_i2c_algorithm = {
static const struct i2c_algorithm zd1301_demod_i2c_algorithm = {
.master_xfer = zd1301_demod_i2c_master_xfer,
.functionality = zd1301_demod_i2c_functionality,
};