platform/x86: apple-gmux: fix gmux_get_client_id()'s return type

BugLink: http://bugs.launchpad.net/bugs/1782689
The method struct vga_switcheroo_handler::get_client_id() is defined
as returning an 'enum vga_switcheroo_client_id' but the implementation
in this driver, gmux_get_client_id(), returns an 'int'.

Fix this by returning 'enum vga_switcheroo_client_id' in this driver too.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
(cherry picked from commit 19e752052b9dd5b1ab901f1982b5d2ae7c188ca2)
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 7c4eb86c851ed9568cb882d32a9a5fdd3a0d13a0..fd2ffebc868fc7ed6ae2c55a899debbf1c5041bd 100644 (file)
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -495,7 +495,7 @@ static int gmux_set_power_state(enum vga_switcheroo_client_id id,
        return gmux_set_discrete_state(apple_gmux_data, state);
 }
 
-static int gmux_get_client_id(struct pci_dev *pdev)
+static enum vga_switcheroo_client_id gmux_get_client_id(struct pci_dev *pdev)
 {
        /*
         * Early Macbook Pros with switchable graphics use nvidia