Author: Markus Elfring <elfring@users.sourceforge.net> The free_io_pgtable_ops() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Will Deacon — drivers/iommu/arm-smmu.c | 4 +— 1 file changed, 1 insertion(+), 3 deletions(-) diff …