sony-laptop: correct find_snc_handle failure checks

Since bab7084c745bf4d75b760728387f375fd34dc683, find_snc_handle
returns -EINVAL, not -1.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index b9499b65c1cd..d456ff0c73b7 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -2555,19 +2555,19 @@ static void sony_nc_backlight_setup(void)
         const struct backlight_ops *ops = NULL;
         struct backlight_properties props;
 
-        if (sony_find_snc_handle(0x12f) != -1) {
+        if (sony_find_snc_handle(0x12f) >= 0) {
                 ops = &sony_backlight_ng_ops;
                 sony_bl_props.cmd_base = 0x0100;
                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
 
-        } else if (sony_find_snc_handle(0x137) != -1) {
+        } else if (sony_find_snc_handle(0x137) >= 0) {
                 ops = &sony_backlight_ng_ops;
                 sony_bl_props.cmd_base = 0x0100;
                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
 
-        } else if (sony_find_snc_handle(0x143) != -1) {
+        } else if (sony_find_snc_handle(0x143) >= 0) {
                 ops = &sony_backlight_ng_ops;
                 sony_bl_props.cmd_base = 0x3000;
                 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);