From bb7311c638bf2cb74a9057b042f6e16020d26b01 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Wed, 13 May 2020 22:14:54 +0200 Subject: [PATCH] ath11k: Fix some resource leaks in error path in 'ath11k_thermal_register()' 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: 4bda8dc377bf ("ath11k: add thermal cooling device support") Signed-off-by: Christophe JAILLET Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200513201454.258111-1-christophe.jaillet@wanadoo.fr --- 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 259dddbda2c72..5a7e150c621be 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; -- 2.39.5