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Subject: media: bt8xx: make bttv_sub_bus_type const
Author: Ricardo B. Marliere <rica...@marliere.net>
Date: Fri Feb 9 20:27:48 2024 -0300
Now that the driver core can properly handle constant struct bus_type,
move the bttv_sub_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <rica...@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/pci/bt8xx/bttv-gpio.c | 2 +-
drivers/media/pci/bt8xx/bttvp.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/drivers/media/pci/bt8xx/bttv-gpio.c
b/drivers/media/pci/bt8xx/bttv-gpio.c
index a2b18e2bed1b..6b7fea50328c 100644
--- a/drivers/media/pci/bt8xx/bttv-gpio.c
+++ b/drivers/media/pci/bt8xx/bttv-gpio.c
@@ -55,7 +55,7 @@ static void bttv_sub_remove(struct device *dev)
sub->remove(sdev);
}
-struct bus_type bttv_sub_bus_type = {
+const struct bus_type bttv_sub_bus_type = {
.name = "bttv-sub",
.match = &bttv_sub_bus_match,
.probe = bttv_sub_probe,
diff --git a/drivers/media/pci/bt8xx/bttvp.h b/drivers/media/pci/bt8xx/bttvp.h
index 0368a583cf07..a534e63b9a37 100644
--- a/drivers/media/pci/bt8xx/bttvp.h
+++ b/drivers/media/pci/bt8xx/bttvp.h
@@ -234,7 +234,7 @@ int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct
v4l2_format *f);
/* ---------------------------------------------------------- */
/* bttv-gpio.c */
-extern struct bus_type bttv_sub_bus_type;
+extern const struct bus_type bttv_sub_bus_type;
int bttv_sub_add_device(struct bttv_core *core, char *name);
int bttv_sub_del_devices(struct bttv_core *core);
