atmel_spi: fix dmachain oops with DEBUG enabled

[powerpc.git] / drivers / spi / spidev.c

diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index c55459c..b3518ca 100644 (file)
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -184,14 +184,14 @@ static int spidev_message(struct spidev_data *spidev,
                if (u_tmp->rx_buf) {
                        k_tmp->rx_buf = buf;
                        if (!access_ok(VERIFY_WRITE, (u8 __user *)
-                                               (ptrdiff_t) u_tmp->rx_buf,
+                                               (uintptr_t) u_tmp->rx_buf,
                                                u_tmp->len))
                                goto done;
                }
                if (u_tmp->tx_buf) {
                        k_tmp->tx_buf = buf;
                        if (copy_from_user(buf, (const u8 __user *)
-                                               (ptrdiff_t) u_tmp->tx_buf,
+                                               (uintptr_t) u_tmp->tx_buf,
                                        u_tmp->len))
                                goto done;
                }
@@ -224,7 +224,7 @@ static int spidev_message(struct spidev_data *spidev,
        for (n = n_xfers, u_tmp = u_xfers; n; n--, u_tmp++) {
                if (u_tmp->rx_buf) {
                        if (__copy_to_user((u8 __user *)
-                                       (ptrdiff_t) u_tmp->rx_buf, buf,
+                                       (uintptr_t) u_tmp->rx_buf, buf,
                                        u_tmp->len)) {
                                status = -EFAULT;
                                goto done;