diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2021-04-01 10:15:02 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-04-06 10:25:26 +0530 |
| commit | e729e0fdc63d8f22cbce61159cee88c04e42b3e2 (patch) | |
| tree | 789c5da2bd53b8321d5b8d35a51b13d9a6d3fbfc /drivers/soundwire/qcom.c | |
| parent | 9916c02ccd74e672b62dd1a9017ac2f237ebf512 (diff) | |
soundwire: qcom: handle return correctly in qcom_swrm_transport_params
Looks like return from reg_write is set but not checked.
Fix this by adding error return path.
Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1503591 ("UNUSED_VALUE")
Fixes: 128eaf937adb ("soundwire: qcom: add support to missing transport params")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210401091502.15825-1-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire/qcom.c')
| -rw-r--r-- | drivers/soundwire/qcom.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c index 892027e6df5f..2827085a323b 100644 --- a/drivers/soundwire/qcom.c +++ b/drivers/soundwire/qcom.c @@ -731,17 +731,23 @@ static int qcom_swrm_transport_params(struct sdw_bus *bus, value |= pcfg->si; ret = ctrl->reg_write(ctrl, reg, value); + if (ret) + goto err; if (pcfg->lane_control != SWR_INVALID_PARAM) { reg = SWRM_DP_PORT_CTRL_2_BANK(params->port_num, bank); value = pcfg->lane_control; ret = ctrl->reg_write(ctrl, reg, value); + if (ret) + goto err; } if (pcfg->blk_group_count != SWR_INVALID_PARAM) { reg = SWRM_DP_BLOCK_CTRL2_BANK(params->port_num, bank); value = pcfg->blk_group_count; ret = ctrl->reg_write(ctrl, reg, value); + if (ret) + goto err; } if (pcfg->hstart != SWR_INVALID_PARAM @@ -755,11 +761,15 @@ static int qcom_swrm_transport_params(struct sdw_bus *bus, ret = ctrl->reg_write(ctrl, reg, value); } + if (ret) + goto err; + if (pcfg->bp_mode != SWR_INVALID_PARAM) { reg = SWRM_DP_BLOCK_CTRL3_BANK(params->port_num, bank); ret = ctrl->reg_write(ctrl, reg, pcfg->bp_mode); } +err: return ret; } |