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authorChristophe JAILLET <[email protected]>2020-05-13 22:14:54 +0200
committerKalle Valo <[email protected]>2020-05-19 09:54:53 +0300
commit25ca180ad380a0c7286442a922e7fbcc6a9f6083 (patch)
tree55d9739435ae1e3a81600afe9d819cf2dfa65307
parentec431188b4197aaccfbc6e6ece4fb88f79723635 (diff)
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: 2a63bbca06b2 ("ath11k: add thermal cooling device support") Signed-off-by: Christophe JAILLET <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/[email protected]
-rw-r--r--drivers/net/wireless/ath/ath11k/thermal.c6
1 files 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;