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Refactor register_backlight_device():
1) Turn the connector-type + signal check into an early exit
condition to avoid the indentation level of the rest of the code
2) Add an array bounds check for the arrays indexed by dm->num_of_edps
3) register_backlight_device() always increases dm->num_of_edps if
amdgpu_dm_register_backlight_device() has assigned a backlight_dev to
the current dm->backlight_link[dm->num_of_edps] slot.
So on its next call dm->backlight_dev[dm->num_of_edps] always point to
the next empty slot and the "if (!dm->backlight_dev[dm->num_of_edps])"
check will thus always succeed and can be removed.
4) Add a bl_idx local variable to use as array index, rather then
using dm->num_of_edps to improve the code readability.
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
ceb4a5619c