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authorJulia Lawall <Julia.Lawall@lip6.fr>2017-08-04 15:09:46 +0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-08-20 15:06:58 +0300
commit177267a9500c2739d0413706f5a32854322ea9aa (patch)
tree4c1da84ace16c03dcadeb421548d34d8862ef542 /drivers/media/usb/tm6000/tm6000-video.c
parent6688324841d9fdc53bdb0aef88ab6352a7185513 (diff)
downloadlinux-177267a9500c2739d0413706f5a32854322ea9aa.tar.xz
media: cx231xx: constify videobuf_queue_ops structures
These videobuf_queue_ops structures are only passed as the second argument to videobuf_queue_vmalloc_init, which is declared as const. Thus the videobuf_queue_ops structures themselves can be const. Done with the help of Coccinelle. // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct videobuf_queue_ops i@p = { ... }; @ok1@ identifier r.i; expression e1; position p; @@ videobuf_queue_vmalloc_init(e1,&i@p,...) @bad@ position p != {r.p,ok1.p}; identifier r.i; struct videobuf_queue_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct videobuf_queue_ops i = { ... }; // </smpl> In the first case, there is a second commented call to videobuf_queue_sg_init with the structure as the second argument. If that code will be uncommented, the const will remain correct, because the second parameter of that function is also const. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/usb/tm6000/tm6000-video.c')
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