From 04c633873c01ce0591b05404af6481100871a921 Mon Sep 17 00:00:00 2001 From: Tom Rix Date: Tue, 15 Mar 2022 15:38:57 -0400 Subject: [PATCH] counter: add defaults to switch-statements Clang static analysis reports this representative problem counter-chrdev.c:482:3: warning: Undefined or garbage value returned to caller return ret; ^~~~~~~~~~ counter_get_data() has a multilevel switches, some without defaults, so ret is sometimes not set. Add returning -EINVAL similar to other defaults. Link: https://lore.kernel.org/r/20220227161746.82776-1-trix@redhat.com Reviewed-by: Jonathan Cameron Acked-by: Syed Nayyar Waris Signed-off-by: Tom Rix Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/b98d1a3ed4b0b324b261b23defd1bdddddba4d44.1647373009.git.vilhelm.gray@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/counter/counter-chrdev.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/counter/counter-chrdev.c b/drivers/counter/counter-chrdev.c index b7c62f957a6a..69d340be9c93 100644 --- a/drivers/counter/counter-chrdev.c +++ b/drivers/counter/counter-chrdev.c @@ -477,6 +477,8 @@ static int counter_get_data(struct counter_device *const counter, case COUNTER_SCOPE_COUNT: ret = comp->count_u8_read(counter, parent, &value_u8); break; + default: + return -EINVAL; } *value = value_u8; return ret; @@ -496,6 +498,8 @@ static int counter_get_data(struct counter_device *const counter, case COUNTER_SCOPE_COUNT: ret = comp->count_u32_read(counter, parent, &value_u32); break; + default: + return -EINVAL; } *value = value_u32; return ret;