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eeepc-laptop: remove redundant NULL checks

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eeepc_hotk_notify() cannot be called with ehotk == NULL or bd == NULL.
We check both variables for allocation failure and would bail out before
the notifier is registered.

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alan Jenkins 2009-12-03 07:45:00 +00:00 committed by Len Brown
parent 13f70029da
commit a2a1d36c78
1 changed files with 19 additions and 23 deletions
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42
drivers/platform/x86/eeepc-laptop.c
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@ -662,12 +662,11 @@ static int notify_brn(void)
{
/* returns the *previous* brightness, or -1 */
struct backlight_device *bd = eeepc_backlight_device;
if (bd) {
int old = bd->props.brightness;
backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
return old;
}
return -1;
int old = bd->props.brightness;
backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
return old;
}
static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot,
@ -741,8 +740,6 @@ static void eeepc_hotk_notify(struct acpi_device *device, u32 event)
u16 count;
int brn = -ENODEV;
if (!ehotk)
return;
if (event > ACPI_MAX_SYS_NOTIFY)
return;
if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX)
@ -753,21 +750,20 @@ static void eeepc_hotk_notify(struct acpi_device *device, u32 event)
dev_name(&ehotk->device->dev), event,
count);
if (ehotk->inputdev) {
if (brn != -ENODEV) {
/* brightness-change events need special
* handling for conversion to key events
*/
if (brn < 0)
brn = event;
else
brn += NOTIFY_BRN_MIN;
if (event < brn)
event = NOTIFY_BRN_MIN; /* brightness down */
else if (event > brn)
event = NOTIFY_BRN_MIN + 2; /* ... up */
else
event = NOTIFY_BRN_MIN + 1; /* ... unchanged */
}
/* brightness-change events need special
* handling for conversion to key events
*/
if (brn < 0)
brn = event;
else
brn += NOTIFY_BRN_MIN;
if (event < brn)
event = NOTIFY_BRN_MIN; /* brightness down */
else if (event > brn)
event = NOTIFY_BRN_MIN + 2; /* ... up */
else
event = NOTIFY_BRN_MIN + 1; /* ... unchanged */
key = eepc_get_entry_by_scancode(event);
if (key) {
switch (key->type) {