iounmap() cannot vunmap() area mapped by TLBCAMs either

Signed-off-by: Christophe Leroy <redacted>
---
No change in v2

 arch/powerpc/mm/pgtable_32.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 7692d1b..03a073a 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c

@@ -278,7 +278,9 @@ void iounmap(volatile void __iomem *addr)
 	 * If mapped by BATs then there is nothing to do.
 	 * Calling vfree() generates a benign warning.
 	 */
-	if (v_mapped_by_bats((unsigned long)addr)) return;
+	if (v_mapped_by_bats((unsigned long)addr) ||
+	    v_mapped_by_tlbcam((unsigned long)addr))
+		return;