atmel_spi dma address bugfix

[linux-2.6-omap-h63xx.git] / drivers / spi / spi_mpc83xx.c

diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c
index 5d92a7e5cb41652042da4ad3fa9a70376323aaf8..e9798bf7b8c6a0dff43795edc1ec1ee36ade6c42 100644 (file)
--- a/drivers/spi/spi_mpc83xx.c
+++ b/drivers/spi/spi_mpc83xx.c
@@ -112,6 +112,8 @@ u32 mpc83xx_spi_tx_buf_##type(struct mpc83xx_spi *mpc83xx_spi)      \
 {                                                              \
        u32 data;                                               \
        const type * tx = mpc83xx_spi->tx;                      \
+       if (!tx)                                                \
+               return 0;                                       \
        data = *tx++;                                           \
        mpc83xx_spi->tx = tx;                                   \
        return data;                                            \
@@ -296,8 +298,7 @@ static int mpc83xx_spi_bufs(struct spi_device *spi, struct spi_transfer *t)
        return t->len - mpc83xx_spi->count;
 }
 
-irqreturn_t mpc83xx_spi_irq(s32 irq, void *context_data,
-                           struct pt_regs * ptregs)
+irqreturn_t mpc83xx_spi_irq(s32 irq, void *context_data)
 {
        struct mpc83xx_spi *mpc83xx_spi = context_data;
        u32 event;