Message ID | 20210615013922.784296-10-yangyingliang@huawei.com (mailing list archive) |
---|---|
State | Not Applicable |
Headers | show |
Series | ASoC: fsl: Use devm_platform_get_and_ioremap_resource() | expand |
Related | show |
Context | Check | Description |
---|---|---|
snowpatch_ozlabs/apply_patch | success | Successfully applied on branch powerpc/merge (419dfbc3e05d80c5f6d6856534cd0a21c22c22de) |
snowpatch_ozlabs/build-ppc64le | success | Build succeeded |
snowpatch_ozlabs/build-ppc64be | success | Build succeeded |
snowpatch_ozlabs/build-ppc64e | success | Build succeeded |
snowpatch_ozlabs/build-pmac32 | success | Build succeeded |
snowpatch_ozlabs/checkpatch | warning | total: 0 errors, 1 warnings, 0 checks, 10 lines checked |
snowpatch_ozlabs/needsstable | success | Patch has no Fixes tags |
diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c index df7c189d97dd..1330e190e1ff 100644 --- a/sound/soc/fsl/fsl_xcvr.c +++ b/sound/soc/fsl/fsl_xcvr.c @@ -1202,6 +1202,10 @@ static int fsl_xcvr_probe(struct platform_device *pdev) rx_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rxfifo"); tx_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "txfifo"); + if (!rx_res || !tx_res) { + dev_err(dev, "could not find rxfifo or txfifo resource\n"); + return -EINVAL; + } xcvr->dma_prms_rx.chan_name = "rx"; xcvr->dma_prms_tx.chan_name = "tx"; xcvr->dma_prms_rx.addr = rx_res->start;
It will cause null-ptr-deref if platform_get_resource_byname() returns NULL, we need check the return value. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- sound/soc/fsl/fsl_xcvr.c | 4 ++++ 1 file changed, 4 insertions(+)