Clang warns:
sound/soc/amd/ps/pci-ps.c:218:2: error: variable 'ret' is used uninitialized whenever switch default is taken [-Werror,-Wsometimes-uninitialized]
default:
^~~~~~~
sound/soc/amd/ps/pci-ps.c:239:9: note: uninitialized use occurs here
return ret;
^~~
sound/soc/amd/ps/pci-ps.c:190:9: note: initialize the variable 'ret' to silence this warning
int ret;
^
= 0
1 error generated.
ret is used uninitialized if 'goto de_init' is taken. As this is not an
error nor should the ACP be deinitialized, just directly return 0 in
this case statement, which resolves the warning.
Fixes: 1d325cdaf7a2 ("ASoC: amd: ps: refactor platform device creation logic")
Link: https://github.com/ClangBuiltLinux/linux/issues/1779
Suggested-by: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx>
Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
---
Changes in v2:
- Instead of setting ret to -ENODEV and going to de_init, just 'return 0' in
the default case (Vijendar)
Link to v1: https://lore.kernel.org/r/20230105-wsometimes-uninitialized-pci-ps-c-v1-1-4022fd077959@xxxxxxxxxx
---
sound/soc/amd/ps/pci-ps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
index 401cfd0036be..64648b75de6b 100644
--- a/sound/soc/amd/ps/pci-ps.c
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -217,7 +217,7 @@ static int create_acp63_platform_devs(struct pci_dev *pci, struct acp63_dev_data
break;
default:
dev_dbg(&pci->dev, "No PDM devices found\n");
- goto de_init;
+ return 0;
}
for (index = 0; index < adata->pdev_count; index++) {
---
base-commit: 03178b4f7e2c59ead102e5ab5acb82ce1eaefe46
change-id: 20230105-wsometimes-uninitialized-pci-ps-c-3b5725c6ed31
Best regards,
--
Nathan Chancellor <nathan@xxxxxxxxxx>
