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Commit 01b76c32 authored by Bo YU's avatar Bo YU Committed by Greg Kroah-Hartman
Browse files

misc: fastrpc: add checked value for dma_set_mask 



There be should check return value from dma_set_mask to throw some info
if fail to set dma mask.

Detected by CoverityScan, CID# 1443983:  Error handling issues (CHECKED_RETURN)

Fixes: f6f9279f ("misc: fastrpc: Add Qualcomm fastrpc basic driver model")
Signed-off-by: default avatarBo YU <tsu.yubo@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c24b074c

drivers/misc/fastrpc.c

+6 −1
Original line number Diff line number Diff line
@@ -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;

	}



	return 0;

}