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authorRob Clark <robdclark@chromium.org>2021-11-17 17:04:52 -0800
committerMark Brown <broonie@kernel.org>2021-11-26 13:24:09 +0000
commit4999d703c0e66f9f196b6edc0b8fdeca8846b8b6 (patch)
tree536cc5a09262df4b2322dd7d7e4c54cf7a358a98 /sound
parent12dc48f545fd349ef2cadcc4d816706951b87998 (diff)
downloadlinux-4999d703c0e66f9f196b6edc0b8fdeca8846b8b6.tar.gz
ASoC: rt5682: Fix crash due to out of scope stack vars
Move the declaration of temporary arrays to somewhere that won't go out
of scope before the devm_clk_hw_register() call, lest we be at the whim
of the compiler for whether those stack variables get overwritten.

Fixes a crash seen with gcc version 11.2.1 20210728 (Red Hat 11.2.1-1)

Fixes: edbd24ea1e5c ("ASoC: rt5682: Drop usage of __clk_get_name()")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20211118010453.843286-1-robdclark@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/rt5682.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index 04cb747c2b12..5224123d0d3b 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -2858,6 +2858,8 @@ int rt5682_register_dai_clks(struct rt5682_priv *rt5682)
 
 	for (i = 0; i < RT5682_DAI_NUM_CLKS; ++i) {
 		struct clk_init_data init = { };
+		struct clk_parent_data parent_data;
+		const struct clk_hw *parent;
 
 		dai_clk_hw = &rt5682->dai_clks_hw[i];
 
@@ -2865,17 +2867,17 @@ int rt5682_register_dai_clks(struct rt5682_priv *rt5682)
 		case RT5682_DAI_WCLK_IDX:
 			/* Make MCLK the parent of WCLK */
 			if (rt5682->mclk) {
-				init.parent_data = &(struct clk_parent_data){
+				parent_data = (struct clk_parent_data){
 					.fw_name = "mclk",
 				};
+				init.parent_data = &parent_data;
 				init.num_parents = 1;
 			}
 			break;
 		case RT5682_DAI_BCLK_IDX:
 			/* Make WCLK the parent of BCLK */
-			init.parent_hws = &(const struct clk_hw *){
-				&rt5682->dai_clks_hw[RT5682_DAI_WCLK_IDX]
-			};
+			parent = &rt5682->dai_clks_hw[RT5682_DAI_WCLK_IDX];
+			init.parent_hws = &parent;
 			init.num_parents = 1;
 			break;
 		default: