[cocci] [PATCH 22/36] iommu/s390: remove conditional return with no effect

Sang-Heon Jeon <[email protected]> Fri, 24 Jul 2026 03:45:24 +0900
Newsgroups fr.inria.cocci,dev.linux.lists.iommu,org.kernel.vger.linux-kernel,org.kernel.vger.linux-s390
Message-ID <[email protected]>
Both branches of the check return the same value, so the check has
no effect. Remove it and return the value directly.

This is the result of running the Coccinelle script from
scripts/coccinelle/misc/cond_return_no_effect.cocci.

Signed-off-by: Sang-Heon Jeon <[email protected]>
---
 drivers/iommu/s390-iommu.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
index f148f559ac56..d008b1d14a9e 100644
--- a/drivers/iommu/s390-iommu.c
+++ b/drivers/iommu/s390-iommu.c
@@ -1115,8 +1115,6 @@ __setup("s390_iommu_aperture=", s390_iommu_aperture_setup);
 
 static int __init s390_iommu_init(void)
 {
-	int rc;
-
 	iommu_dma_forcedac = true;
 	s390_iommu_aperture = (u64)virt_to_phys(high_memory);
 	if (!s390_iommu_aperture_factor)
@@ -1124,11 +1122,7 @@ static int __init s390_iommu_init(void)
 	else
 		s390_iommu_aperture *= s390_iommu_aperture_factor;
 
-	rc = dma_alloc_cpu_table_caches();
-	if (rc)
-		return rc;
-
-	return rc;
+	return dma_alloc_cpu_table_caches();
 }
 subsys_initcall(s390_iommu_init);
 
-- 
2.43.0