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misc: k3_avs: Fix possible NULL pointer deference

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Its possible that k3_avs_priv is NULL because the driver may not have
been probed yet. Therefore check if pointer is valid before
dereferencing it.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
Vignesh Raghavendra 2020-02-14 17:52:17 +05:30 committed by Lokesh Vutla
parent 548ce227d3
commit 7a8d03f88e
1 changed files with 4 additions and 0 deletions
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4
drivers/misc/k3_avs.c
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@ -191,6 +191,10 @@ int k3_avs_notify_freq(int dev_id, int clk_id, u32 freq)
struct k3_avs_privdata *priv = k3_avs_priv;
struct vd_data *vd;
/* Driver may not be probed yet */
if (!priv)
return -EINVAL;
for (vd = priv->vd_config->vds; vd->id >= 0; vd++) {
if (vd->dev_id != dev_id || vd->clk_id != clk_id)
continue;