于 8/4/2010 3:17 AM, Bill Pemberton 写道:
drivers/acpi/acpi_pad.c:432: warning: 'num_cpus' may be used
uninitialized in this function
num_cpus is set by the call to acpi_pad_pur()
Signed-off-by: Bill Pemberton<wfp5p@xxxxxxxxxxxx>
---
drivers/acpi/acpi_pad.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index b76848c..69e2593 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -429,7 +429,7 @@ static void acpi_pad_ost(acpi_handle handle, int stat,
static void acpi_pad_handle_notify(acpi_handle handle)
{
- int num_cpus;
+ int uninitialized_var(num_cpus);
uint32_t idle_cpus;
mutex_lock(&isolated_cpus_lock);
It is not necessary because the 1st usage of this variable is as
left-value, not right-value.
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