Merge tag 'wireless-drivers-for-davem-2015-04-01' of git://git.kernel.org/pub/scm...

[karo-tx-linux.git] / drivers / spi / spi-img-spfi.c

diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c
index c01567d53581c0dcdfc6fcb61e7f6e821d0e0b39..e649bc7d4c086bb789d2dc1803c621bebdc29a19 100644 (file)
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
@@ -459,6 +459,13 @@ static int img_spfi_transfer_one(struct spi_master *master,
        unsigned long flags;
        int ret;
 
+       if (xfer->len > SPFI_TRANSACTION_TSIZE_MASK) {
+               dev_err(spfi->dev,
+                       "Transfer length (%d) is greater than the max supported (%d)",
+                       xfer->len, SPFI_TRANSACTION_TSIZE_MASK);
+               return -EINVAL;
+       }
+
        /*
         * Stop all DMA and reset the controller if the previous transaction
         * timed-out and never completed it's DMA.