[PATCH v2] platform/x86: intel_ips: fix set but unused warning in read_mgtv

[yangerkun <yangerkun@xxxxxxxxxx>]

drivers/platform/x86/intel_ips.c:832:6: warning: variable ‘ret’ set but
not used [-Wunused-but-set-variable]
  832 |  u16 ret;
      |      ^~~

Fix it by mark ret as '__maybe_unused'.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: yangerkun <yangerkun@xxxxxxxxxx>
---
 drivers/platform/x86/intel_ips.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c
index bffe548187ee..4dfdbfca6841 100644
--- a/drivers/platform/x86/intel_ips.c
+++ b/drivers/platform/x86/intel_ips.c
@@ -829,7 +829,7 @@ static u16 calc_avg_temp(struct ips_driver *ips, u16 *array)
 
 static u16 read_mgtv(struct ips_driver *ips)
 {
-	u16 ret;
+	u16 __maybe_unused ret;
 	u64 slope, offset;
 	u64 val;
 
-- 
2.31.1