Commit 4df61d87 authored by Subhash Jadavani's avatar Subhash Jadavani Committed by Greg Kroah-Hartman

scsi: ufshcd: release resources if probe fails

commit afa3dfd4 upstream.

If ufshcd pltfrm/pci driver's probe fails for some reason then ensure
that scsi host is released to avoid memory leak but managed memory
allocations (via devm_* calls) need not to be freed explicitly on probe
failure as memory allocated with these functions is automatically freed
on driver detach.
Reviewed-by: default avatarSahitya Tummala <stummala@codeaurora.org>
Signed-off-by: default avatarSubhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarAmit Pundir <amit.pundir@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d43f955f
......@@ -104,6 +104,7 @@ static void ufshcd_pci_remove(struct pci_dev *pdev)
pm_runtime_forbid(&pdev->dev);
pm_runtime_get_noresume(&pdev->dev);
ufshcd_remove(hba);
ufshcd_dealloc_host(hba);
}
/**
......@@ -147,6 +148,7 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
err = ufshcd_init(hba, mmio_base, pdev->irq);
if (err) {
dev_err(&pdev->dev, "Initialization failed\n");
ufshcd_dealloc_host(hba);
return err;
}
......
......@@ -161,7 +161,7 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
if (ret) {
dev_err(dev, "%s: unable to find %s err %d\n",
__func__, prop_name, ret);
goto out_free;
goto out;
}
vreg->min_uA = 0;
......@@ -183,9 +183,6 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
goto out;
out_free:
devm_kfree(dev, vreg);
vreg = NULL;
out:
if (!ret)
*out_vreg = vreg;
......
......@@ -5385,8 +5385,6 @@ void ufshcd_remove(struct ufs_hba *hba)
ufshcd_disable_intr(hba, hba->intr_mask);
ufshcd_hba_stop(hba);
scsi_host_put(hba->host);
ufshcd_exit_clk_gating(hba);
if (ufshcd_is_clkscaling_enabled(hba))
devfreq_remove_device(hba->devfreq);
......@@ -5733,7 +5731,6 @@ exit_gating:
ufshcd_exit_clk_gating(hba);
out_disable:
hba->is_irq_enabled = false;
scsi_host_put(host);
ufshcd_hba_exit(hba);
out_error:
return err;
......
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