[PATCH] vga_switcheroo: Fix impossible judgment condition

[Su Hui]

'id' is enum type like unsigned int, so it will never be less than zero.

Fixes: 4aaf448fa975 ("vga_switcheroo: set audio client id according to bound 
GPU id")
Signed-off-by: Su Hui <su...@nfschina.com>
---
 drivers/gpu/vga/vga_switcheroo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/vga/vga_switcheroo.c b/drivers/gpu/vga/vga_switcheroo.c
index 365e6ddbe90f..d3064466fd3a 100644
--- a/drivers/gpu/vga/vga_switcheroo.c
+++ b/drivers/gpu/vga/vga_switcheroo.c
@@ -375,7 +375,7 @@ int vga_switcheroo_register_audio_client(struct pci_dev 
*pdev,
        mutex_lock(&vgasr_mutex);
        if (vgasr_priv.active) {
                id = vgasr_priv.handler->get_client_id(vga_dev);
-               if (id < 0) {
+               if ((int)id < 0) {
                        mutex_unlock(&vgasr_mutex);
                        return -EINVAL;
                }
-- 
2.30.2