1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 1b760a0b1109..9faaaae78b0a 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2144,10 +2144,15 @@ static inline u32 transport_get_sectors_6(
 
         /*
          * Everything else assume TYPE_DISK Sector CDB location.
-         * Use 8-bit sector value.
+         * Use 8-bit sector value.  SBC-3 says:
+         *
+         *   A TRANSFER LENGTH field set to zero specifies that 256
+         *   logical blocks shall be written.  Any other value
+         *   specifies the number of logical blocks that shall be
+         *   written.
          */
 type_disk:
-        return (u32)cdb[4];
+        return cdb[4] ? : 256;
 }
 
 static inline u32 transport_get_sectors_10(