Re: [PATCH] ASoC: simple-card: fix possible uninitialized single_cpu local variable

From: Sameer Pujar
Date: Wed Apr 07 2021 - 10:02:01 EST




On 4/7/2021 2:50 PM, Krzysztof Kozlowski wrote:
The 'single_cpu' local variable is assigned by asoc_simple_parse_dai()
and later used in a asoc_simple_canonicalize_cpu() call, assuming the
entire function did not exit on errors.

However the first function returns 0 if passed device_node is NULL,
thus leaving the variable uninitialized and reporting success.

Addresses-Coverity: Uninitialized scalar variable
Fixes: 8f7f298a3337 ("ASoC: simple-card-utils: separate asoc_simple_card_parse_dai()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
---
sound/soc/generic/audio-graph-card.c | 2 +-
sound/soc/generic/simple-card.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)


Acked-by: Sameer Pujar <spujar@xxxxxxxxxx>