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net: wwan: qcom_bam_dmux: fix wrong pointer passed to IS_ERR() 

It should check dmux->tx after calling dma_request_chan().

Fixes: 21a0ffd9b3 ("net: wwan: Add Qualcomm BAM-DMUX WWAN network driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20220319032450.3288224-1-yangyingliang@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Yang Yingliang 2022-03-19 11:24:50 +08:00 committed by Paolo Abeni
parent 8fd36358ce
commit 6b3c745502
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wwan/qcom_bam_dmux.c
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@ -755,7 +755,7 @@ static int __maybe_unused bam_dmux_runtime_resume(struct device *dev)
return 0;
dmux->tx = dma_request_chan(dev, "tx");
if (IS_ERR(dmux->rx)) {
if (IS_ERR(dmux->tx)) {
dev_err(dev, "Failed to request TX DMA channel: %pe\n", dmux->tx);
dmux->tx = NULL;
bam_dmux_runtime_suspend(dev);