[libata] sata_dwc_460ex: signdness bug

dma_dwc_xfer_setup() returns an int and "dma_chan" needs to be signed
for the error handling to work.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 2673a3d..6cf57c5 100644 (file)
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -1459,7 +1459,7 @@ static void sata_dwc_qc_prep_by_tag(struct ata_queued_cmd *qc, u8 tag)
 {
        struct scatterlist *sg = qc->sg;
        struct ata_port *ap = qc->ap;
-       u32 dma_chan;
+       int dma_chan;
        struct sata_dwc_device *hsdev = HSDEV_FROM_AP(ap);
        struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);
        int err;