diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-05-05 16:23:04 +0300 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2016-10-20 00:46:31 +0200 |
| commit | 40772621b96c5c05e3cb28d60f43bd77f963cabd (patch) | |
| tree | d29f4e7cda4239c21274f00a2ce0f693506babc5 | |
| parent | 479c12a03b99cab376b02b28aab81ea450f2137a (diff) | |
ACPI / sysfs: fix error code in get_status()
commit f18ebc211e259d4f591e39e74b2aa2de226c9a1d upstream.
The problem with ornamental, do-nothing gotos is that they lead to
"forgot to set the error code" bugs. We should be returning -EINVAL
here but we don't. It leads to an uninitalized variable in
counter_show():
drivers/acpi/sysfs.c:603 counter_show()
error: uninitialized symbol 'status'.
Fixes: 1c8fce27e275 (ACPI: introduce drivers/acpi/sysfs.c)
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
| -rw-r--r-- | drivers/acpi/sysfs.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index fcae5fa2e1b3..95b6371e1fe7 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -492,23 +492,22 @@ static void acpi_global_event_handler(u32 event_type, acpi_handle device, static int get_status(u32 index, acpi_event_status *status, acpi_handle *handle) { - int result = 0; + int result; if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS) - goto end; + return -EINVAL; if (index < num_gpes) { result = acpi_get_gpe_device(index, handle); if (result) { ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND, "Invalid GPE 0x%x", index)); - goto end; + return result; } result = acpi_get_gpe_status(*handle, index, status); } else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS)) result = acpi_get_event_status(index - num_gpes, status); -end: return result; } |