media: dm1105: constify i2c_algorithm structure
authorGustavo A. R. Silva <garsilva@embeddedor.com>
Mon, 10 Jul 2017 01:19:36 +0000 (21:19 -0400)
committerMauro Carvalho Chehab <mchehab@s-opensource.com>
Thu, 20 Jul 2017 18:58:58 +0000 (14:58 -0400)
commit3c13978ead17b7421b0d6dc76d2db9dc12fc1844
tree0acc6f04e60890c762f3060d91e6797d98433e47
parent618e8aac3d7ccbf49b170181a6f3a418ba6e5419
media: dm1105: 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/pci/dm1105/dm1105.c