dmaengine: dw: define counter variables as unsigned int

The code is fixed to satisfy a compiler otherwise we have

drivers/dma/dw/core.c: In function ‘dwc_handle_cyclic’:
drivers/dma/dw/core.c:568: warning: comparison between signed and unsigned
drivers/dma/dw/core.c: In function ‘dw_dma_tasklet’:
drivers/dma/dw/core.c:590: warning: comparison between signed and unsigned
drivers/dma/dw/core.c: In function ‘dw_dma_off’:
drivers/dma/dw/core.c:1103: warning: comparison between signed and unsigned
drivers/dma/dw/core.c: In function ‘dw_dma_cyclic_free’:
drivers/dma/dw/core.c:1469: warning: comparison between signed and unsigned
drivers/dma/dw/core.c: In function ‘dw_dma_probe’:
drivers/dma/dw/core.c:1574: warning: comparison between signed and unsigned

There is no functional change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 93d8d553c686b3127edbfa799d2503aa5390e40e..63502241703a850347255d7f755a7ab7d727d1ed 100644 (file)
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -557,7 +557,7 @@ static void dwc_handle_cyclic(struct dw_dma *dw, struct dw_dma_chan *dwc,
         */
        if (unlikely(status_err & dwc->mask) ||
                        unlikely(status_xfer & dwc->mask)) {
-               int i;
+               unsigned int i;
 
                dev_err(chan2dev(&dwc->chan),
                        "cyclic DMA unexpected %s interrupt, stopping DMA transfer\n",
@@ -597,7 +597,7 @@ static void dw_dma_tasklet(unsigned long data)
        u32 status_block;
        u32 status_xfer;
        u32 status_err;
-       int i;
+       unsigned int i;
 
        status_block = dma_readl(dw, RAW.BLOCK);
        status_xfer = dma_readl(dw, RAW.XFER);
@@ -1115,7 +1115,7 @@ static void dwc_issue_pending(struct dma_chan *chan)
 
 static void dw_dma_off(struct dw_dma *dw)
 {
-       int i;
+       unsigned int i;
 
        dma_writel(dw, CFG, 0);
 
@@ -1480,7 +1480,7 @@ void dw_dma_cyclic_free(struct dma_chan *chan)
        struct dw_dma_chan      *dwc = to_dw_dma_chan(chan);
        struct dw_dma           *dw = to_dw_dma(dwc->chan.device);
        struct dw_cyclic_desc   *cdesc = dwc->cdesc;
-       int                     i;
+       unsigned int            i;
        unsigned long           flags;
 
        dev_dbg(chan2dev(&dwc->chan), "%s\n", __func__);
@@ -1516,8 +1516,8 @@ int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata)
        bool                    autocfg = false;
        unsigned int            dw_params;
        unsigned int            max_blk_size = 0;
+       unsigned int            i;
        int                     err;
-       int                     i;
 
        dw = devm_kzalloc(chip->dev, sizeof(*dw), GFP_KERNEL);
        if (!dw)