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[2/2] ALSA: seq: make snd_seq_bus_type const

Message ID 20240214-bus_cleanup-alsa-v1-2-8fedbb4afa94@marliere.net (mailing list archive)
State New, archived
Headers show
Series ALSA: struct bus_type cleanup | expand

Commit Message

Ricardo B. Marliere Feb. 14, 2024, 7:28 p.m. UTC 
Since commit d492cc2573a0 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the snd_seq_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 <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
---
 sound/core/seq_device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/sound/core/seq_device.c b/sound/core/seq_device.c
index 7f3fd8eb016f..654d620d0199 100644
--- a/sound/core/seq_device.c
+++ b/sound/core/seq_device.c
@@ -49,7 +49,7 @@  static int snd_seq_bus_match(struct device *dev, struct device_driver *drv)
 		sdrv->argsize == sdev->argsize;
 }
 
-static struct bus_type snd_seq_bus_type = {
+static const struct bus_type snd_seq_bus_type = {
 	.name = "snd_seq",
 	.match = snd_seq_bus_match,
 };