diff options
| author | Sean Paul <seanpaul@chromium.org> | 2017-05-18 09:24:30 -0400 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2017-05-18 09:24:30 -0400 |
| commit | 6b7781b42dc9bc9bcd1523b6c24b876cdda0bef3 (patch) | |
| tree | ee55c67e4ea30b9eb44f301ba0bde2e631a26162 /drivers/misc/enclosure.c | |
| parent | 52d9d38c183bf0e09601d875ea31bb53c05dd8cf (diff) | |
| parent | e98c58e55f68f8785aebfab1f8c9a03d8de0afe1 (diff) | |
Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Picking up drm-next @ 4.12-rc1 in order to apply Michal Hocko's vmalloc patch set
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'drivers/misc/enclosure.c')
| -rw-r--r-- | drivers/misc/enclosure.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c index 65fed7146e9b..d3fe3ea902d4 100644 --- a/drivers/misc/enclosure.c +++ b/drivers/misc/enclosure.c @@ -148,7 +148,7 @@ enclosure_register(struct device *dev, const char *name, int components, for (i = 0; i < components; i++) { edev->component[i].number = -1; edev->component[i].slot = -1; - edev->component[i].power_status = 1; + edev->component[i].power_status = -1; } mutex_lock(&container_list_lock); @@ -594,6 +594,11 @@ static ssize_t get_component_power_status(struct device *cdev, if (edev->cb->get_power_status) edev->cb->get_power_status(edev, ecomp); + + /* If still uninitialized, the callback failed or does not exist. */ + if (ecomp->power_status == -1) + return (edev->cb->get_power_status) ? -EIO : -ENOTTY; + return snprintf(buf, 40, "%s\n", ecomp->power_status ? "on" : "off"); } |