On Tue, Mar 19, 2019 at 10:05 AM Bo YU <tsu.y...@gmail.com> wrote:
>
> There be should check return value from dma_set_mask to throw some infos
> if fail to set dma mask.
>
> Detected by CoverityScan, CID# 1443983: Error handling issues
> (CHECKED_RETURN)
>
> Fixes:f6f9279f2bf0 (misc: fastrpc: Add Qualcomm fastrpc basic driver model)
> Signed-off-by: Bo YU <tsu.y...@gmail.com>
> ---
> drivers/misc/fastrpc.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
> index 39f832d27288..36d0d5c9cfba 100644
> --- a/drivers/misc/fastrpc.c
> +++ b/drivers/misc/fastrpc.c
> @@ -1184,6 +1184,7 @@ static int fastrpc_cb_probe(struct platform_device
> *pdev)
> struct fastrpc_session_ctx *sess;
> struct device *dev = &pdev->dev;
> int i, sessions = 0;
> + int rc;
>
> cctx = dev_get_drvdata(dev->parent);
> if (!cctx)
> @@ -1213,7 +1214,11 @@ static int fastrpc_cb_probe(struct platform_device
> *pdev)
> }
> cctx->sesscount++;
> spin_unlock(&cctx->lock);
> - dma_set_mask(dev, DMA_BIT_MASK(32));
> + rc = dma_set_mask(dev, DMA_BIT_MASK(32));
> + if (rc) {
> + dev_err(dev, "32-bit DMA enable failed\n");
> + return rc;
> + }
>
Ping?
Do me need resend it?
> return 0;
> }
> --
> 2.11.0
>
