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Commit 61c6e753 authored by Sachin Kamat's avatar Sachin Kamat Committed by Vinod Koul
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DMA: PL330: Check the pointer returned by kzalloc 



kzalloc could return NULL. Hence add a check to avoid
NULL pointer dereference.

Signed-off-by: default avatarSachin Kamat <sachin.kamat@linaro.org>
Acked-by: default avatarJassi Brar <jassisinghbrar@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@linux.intel.com>
parent 2e2c682b

drivers/dma/pl330.c

+5 −0
Original line number Diff line number Diff line
@@ -2930,6 +2930,11 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) 
		num_chan = max_t(int, pi->pcfg.num_peri, pi->pcfg.num_chan);



	pdmac->peripherals = kzalloc(num_chan * sizeof(*pch), GFP_KERNEL);

	if (!pdmac->peripherals) {

		ret = -ENOMEM;

		dev_err(&adev->dev, "unable to allocate pdmac->peripherals\n");

		goto probe_err5;

	}



	for (i = 0; i < num_chan; i++) {

		pch = &pdmac->peripherals[i];