[alsa-devel] [PATCH 12/31] ALSA: bt87x: Constify hw_constraints

Takashi Iwai tiwai at suse.de
Thu Jun 8 23:08:33 CEST 2017


snd_pcm_hw_constraint_list(), *_ratnums() and *_ratdens() receive the
const pointers.  Constify the corresponding static objects for better
hardening.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/bt87x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/bt87x.c b/sound/pci/bt87x.c
index 099efb046b1c..de0234294c25 100644
--- a/sound/pci/bt87x.c
+++ b/sound/pci/bt87x.c
@@ -401,13 +401,13 @@ static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runti
 
 static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
 {
-	static struct snd_ratnum analog_clock = {
+	static const struct snd_ratnum analog_clock = {
 		.num = ANALOG_CLOCK,
 		.den_min = CLOCK_DIV_MIN,
 		.den_max = CLOCK_DIV_MAX,
 		.den_step = 1
 	};
-	static struct snd_pcm_hw_constraint_ratnums constraint_rates = {
+	static const struct snd_pcm_hw_constraint_ratnums constraint_rates = {
 		.nrats = 1,
 		.rats = &analog_clock
 	};
-- 
2.13.0



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