ARM: OMAP2+: Remove the unneeded result variable

Return the value amx3_common_init() directly instead of storing it in
another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Message-Id: <20220920065113.215685-1-ye.xingchen@zte.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/pm33xx-core.c

@@ -104,8 +104,6 @@ static int amx3_common_init(int (*idle)(u32 wfi_flags))
 
 static int am33xx_suspend_init(int (*idle)(u32 wfi_flags))
 {
-	int ret;
-
 	gfx_l4ls_clkdm = clkdm_lookup("gfx_l4ls_gfx_clkdm");
 
 	if (!gfx_l4ls_clkdm) {
@@ -113,9 +111,7 @@ static int am33xx_suspend_init(int (*idle)(u32 wfi_flags))
 		return -ENODEV;
 	}
 
-	ret = amx3_common_init(idle);
-
-	return ret;
+	return amx3_common_init(idle);
 }
 
 static int am43xx_suspend_init(int (*idle)(u32 wfi_flags))