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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-05-05 16:23:04 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-05-05 16:28:58 +0300 |
| commit | f18ebc211e259d4f591e39e74b2aa2de226c9a1d (patch) | |
| tree | d651da8932ba87dbac83b5a60a50b5dd1388596b /drivers/acpi/sysfs.c | |
| parent | a508d954af748bc1f5f1d9174f167a8650fca923 (diff) | |
| download | linux-f18ebc211e259d4f591e39e74b2aa2de226c9a1d.tar.xz | |
ACPI / sysfs: fix error code in get_status()
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>
Diffstat (limited to 'drivers/acpi/sysfs.c')
| -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 0243d375c6fd..4b3a9e27f1b6 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -555,23 +555,22 @@ 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; } |