From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 25ca180ad380a0c7286442a922e7fbcc6a9f6083 ]
If 'thermal_cooling_device_register()' fails, we must undo what has been allocated so far. So we must go to 'err_thermal_destroy' instead of returning directly
In case of error in 'ath11k_thermal_register()', the previous 'thermal_cooling_device_register()' call must also be undone. Move the 'ar->thermal.cdev = cdev' a few lines above in order for this to be done in 'ath11k_thermal_unregister()' which is called in the error handling path.
Fixes: 2a63bbca06b2 ("ath11k: add thermal cooling device support") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/20200513201454.258111-1-christophe.jaillet@wanadoo... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath11k/thermal.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath11k/thermal.c b/drivers/net/wireless/ath/ath11k/thermal.c index 259dddbda2c7..5a7e150c621b 100644 --- a/drivers/net/wireless/ath/ath11k/thermal.c +++ b/drivers/net/wireless/ath/ath11k/thermal.c @@ -174,9 +174,12 @@ int ath11k_thermal_register(struct ath11k_base *sc) if (IS_ERR(cdev)) { ath11k_err(sc, "failed to setup thermal device result: %ld\n", PTR_ERR(cdev)); - return -EINVAL; + ret = -EINVAL; + goto err_thermal_destroy; }
+ ar->thermal.cdev = cdev; + ret = sysfs_create_link(&ar->hw->wiphy->dev.kobj, &cdev->device.kobj, "cooling_device"); if (ret) { @@ -184,7 +187,6 @@ int ath11k_thermal_register(struct ath11k_base *sc) goto err_thermal_destroy; }
- ar->thermal.cdev = cdev; if (!IS_REACHABLE(CONFIG_HWMON)) return 0;