diff options
| author |   Corentin Labbe <clabbe@baylibre.com> | 2018-07-17 10:49:35 +0000 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2018-07-24 09:44:24 -0700 |
| commit | 04ba9488199e3ee9971769cee585ec6847013ed2 (patch) | |
| tree | a79d4799ca8bdb24e80c10ed486c203ddc594352 /drivers/ata | |
| parent | ata: sata_rcar: Add rudimentary Runtime PM support (diff) | |
| download | linux-dev-04ba9488199e3ee9971769cee585ec6847013ed2.tar.xz linux-dev-04ba9488199e3ee9971769cee585ec6847013ed2.zip | |
Revert "ata: ahci_platform: convert kcalloc to devm_kcalloc"
Since ahci_platform_put_resources() use target_pwrs after "devm_" freed
it, we cannot use devm_kcalloc for allocating target_pwrs.
This reverts commit bd0038b1b4f499d814d8f33a55b1df5ea6cf3b85.
Reported-and-reviwed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/libahci_platform.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c index fe8939e161ea..2ceebaf2ed56 100644 --- a/drivers/ata/libahci_platform.c +++ b/drivers/ata/libahci_platform.c @@ -271,6 +271,8 @@ static void ahci_platform_put_resources(struct device *dev, void *res) for (c = 0; c < hpriv->nports; c++) if (hpriv->target_pwrs && hpriv->target_pwrs[c]) regulator_put(hpriv->target_pwrs[c]); + + kfree(hpriv->target_pwrs); } static int ahci_platform_get_phy(struct ahci_host_priv *hpriv, u32 port, @@ -406,7 +408,11 @@ struct ahci_host_priv *ahci_platform_get_resources(struct platform_device *pdev) rc = -ENOMEM; goto err_out; } - hpriv->target_pwrs = devm_kcalloc(dev, hpriv->nports, sizeof(*hpriv->target_pwrs), GFP_KERNEL); + /* + * We cannot use devm_ here, since ahci_platform_put_resources() uses + * target_pwrs after devm_ have freed memory + */ + hpriv->target_pwrs = kcalloc(hpriv->nports, sizeof(*hpriv->target_pwrs), GFP_KERNEL); if (!hpriv->target_pwrs) { rc = -ENOMEM; goto err_out; |