diff options
| author | Charles Keepax <ckeepax@opensource.cirrus.com> | 2021-11-17 13:22:52 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-11-17 22:16:20 +0000 |
| commit | 5065cfabec21a4acf562932f1d0a814c119e0a69 (patch) | |
| tree | ceafe9c129e078f303ee7f7643ef99357eff9bc7 /drivers/firmware | |
| parent | 56717d72f7a811799e8d138ff3d49325272c5cf6 (diff) | |
firmware: cs_dsp: Add lockdep asserts to interface functions
Some of the control functions exposed by the cs_dsp code require the
pwr_lock to be held by the caller. Add lockdep_assert_held calls to
ensure this is done correctly.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20211117132300.1290-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/cirrus/cs_dsp.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/firmware/cirrus/cs_dsp.c b/drivers/firmware/cirrus/cs_dsp.c index 1a0c6c793f6a..0d1ba7d8efa4 100644 --- a/drivers/firmware/cirrus/cs_dsp.c +++ b/drivers/firmware/cirrus/cs_dsp.c @@ -653,6 +653,8 @@ int cs_dsp_coeff_write_acked_control(struct cs_dsp_coeff_ctl *ctl, unsigned int unsigned int reg; int i, ret; + lockdep_assert_held(&dsp->pwr_lock); + if (!dsp->running) return -EPERM; @@ -754,6 +756,8 @@ int cs_dsp_coeff_write_ctrl(struct cs_dsp_coeff_ctl *ctl, const void *buf, size_ { int ret = 0; + lockdep_assert_held(&ctl->dsp->pwr_lock); + if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) ret = -EPERM; else if (buf != ctl->cache) @@ -811,6 +815,8 @@ int cs_dsp_coeff_read_ctrl(struct cs_dsp_coeff_ctl *ctl, void *buf, size_t len) { int ret = 0; + lockdep_assert_held(&ctl->dsp->pwr_lock); + if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) { if (ctl->enabled && ctl->dsp->running) return cs_dsp_coeff_read_ctrl_raw(ctl, buf, len); @@ -1453,6 +1459,8 @@ struct cs_dsp_coeff_ctl *cs_dsp_get_ctl(struct cs_dsp *dsp, const char *name, in { struct cs_dsp_coeff_ctl *pos, *rslt = NULL; + lockdep_assert_held(&dsp->pwr_lock); + list_for_each_entry(pos, &dsp->ctl_list, list) { if (!pos->subname) continue; @@ -1548,6 +1556,8 @@ struct cs_dsp_alg_region *cs_dsp_find_alg_region(struct cs_dsp *dsp, { struct cs_dsp_alg_region *alg_region; + lockdep_assert_held(&dsp->pwr_lock); + list_for_each_entry(alg_region, &dsp->alg_regions, list) { if (id == alg_region->alg && type == alg_region->type) return alg_region; @@ -2783,6 +2793,8 @@ int cs_dsp_read_raw_data_block(struct cs_dsp *dsp, int mem_type, unsigned int me unsigned int reg; int ret; + lockdep_assert_held(&dsp->pwr_lock); + if (!mem) return -EINVAL; @@ -2836,6 +2848,8 @@ int cs_dsp_write_data_word(struct cs_dsp *dsp, int mem_type, unsigned int mem_ad __be32 val = cpu_to_be32(data & 0x00ffffffu); unsigned int reg; + lockdep_assert_held(&dsp->pwr_lock); + if (!mem) return -EINVAL; |