diff options
| -rw-r--r-- | drivers/firmware/cirrus/cs_dsp.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c index 62ba4ebbf11f..9eecd1626537 100644 --- a/drivers/firmware/cirrus/cs_dsp.c +++ b/drivers/firmware/cirrus/cs_dsp.c @@ -758,6 +758,9 @@ int cs_dsp_coeff_write_ctrl(struct cs_dsp_coeff_ctl *ctl, const void *buf, size_ lockdep_assert_held(&ctl->dsp->pwr_lock); + if (!ctl) + return -ENOENT; + if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) ret = -EPERM; else if (buf != ctl->cache) @@ -817,6 +820,9 @@ int cs_dsp_coeff_read_ctrl(struct cs_dsp_coeff_ctl *ctl, void *buf, size_t len) lockdep_assert_held(&ctl->dsp->pwr_lock); + if (!ctl) + return -ENOENT; + if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) { if (ctl->enabled && ctl->dsp->running) return cs_dsp_coeff_read_ctrl_raw(ctl, buf, len); |