arm64/fp: Reindent fpsimd_save()

Currently all the active code in fpsimd_save() is inside a check for
TIF_FOREIGN_FPSTATE. Reduce the indentation level by changing to return
from the function if TIF_FOREIGN_FPSTATE is set.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211019172247.3045838-2-broonie@kernel.orgSigned-off-by: Will Deacon <will@kernel.org>

arch/arm64/kernel/fpsimd.c

@@ -308,7 +308,9 @@ static void fpsimd_save(void)
 	WARN_ON(!system_supports_fpsimd());
 	WARN_ON(!have_cpu_fpsimd_context());
 
-	if (!test_thread_flag(TIF_FOREIGN_FPSTATE)) {
+	if (test_thread_flag(TIF_FOREIGN_FPSTATE))
+		return;
+
 	if (IS_ENABLED(CONFIG_ARM64_SVE) &&
 	    test_thread_flag(TIF_SVE)) {
 		if (WARN_ON(sve_get_vl() != last->sve_vl)) {
@@ -324,7 +326,7 @@ static void fpsimd_save(void)
 		sve_save_state((char *)last->sve_state +
 					sve_ffr_offset(last->sve_vl),
 			       &last->st->fpsr);
-		} else
+	} else {
 		fpsimd_save_state(last->st);
 	}
 }