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msm: mhi_dev: Adding check in open channel API

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Adding check for mhi_ctx and mhi_ctx->pdev in mhi_dev_open_channel API
which is called by the clients. This prevents the device crash when
mhi_dev_open_channel is called in PCIe RC configuration or when it is
called when mhi_ctx is not created yet.

Change-Id: Ic1737fa1090c06153b0638014f014ec7c1ca2903
Signed-off-by: Sai Chaitanya Kaveti <quic_skaveti@quicinc.com>
This commit is contained in:
Sai Chaitanya Kaveti 2022-03-24 14:48:01 +05:30
commit ea49b496fd
1 changed files with 5 additions and 0 deletions
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5
drivers/platform/msm/mhi_dev/mhi.c
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@ -3155,6 +3155,11 @@ int mhi_dev_open_channel(uint32_t chan_id,
struct mhi_dev_channel *ch;
struct platform_device *pdev;
if (!mhi_ctx || !mhi_ctx->pdev) {
mhi_log(MHI_MSG_ERROR, "Invalid open channel call for ch_id:%d\n", chan_id);
return -EINVAL;
}
pdev = mhi_ctx->pdev;
ch = &mhi_ctx->ch[chan_id];