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-rw-r--r--arch/arm/mm/cache-v7.S3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index 39e3fb3..3b17227 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -211,6 +211,9 @@ ENTRY(v7_coherent_user_range)
* isn't mapped, fail with -EFAULT.
*/
9001:
+#ifdef CONFIG_ARM_ERRATA_775420
+ dsb
+#endif
mov r0, #-EFAULT
mov pc, lr
UNWIND(.fnend )
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