media: dib9000: constify i2c_algorithm structure
authorGustavo A. R. Silva <garsilva@embeddedor.com>
Sun, 9 Jul 2017 22:24:19 +0000 (18:24 -0400)
committerMauro Carvalho Chehab <mchehab@s-opensource.com>
Thu, 20 Jul 2017 18:53:16 +0000 (14:53 -0400)
commit19779f40520104423ec34581623f032affa08579
tree5b2fd565f45b057c2b9c81180b84d34f33550753
parent830a45a2f44852fb7e1b49f95c7c5703816d9d94
media: dib9000: constify i2c_algorithm structure

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>
drivers/media/dvb-frontends/dib9000.c