diff options
| author | Subhash Jadavani <subhashj@codeaurora.org> | 2016-10-28 03:25:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-01 11:46:40 +0300 |
| commit | 4df61d87ad67dece3c0f70072d8b7cc3552f858a (patch) | |
| tree | 32e15adcf7587c8f8943de1c7253da0152c3e335 | |
| parent | d43f955f2dd950a12a006e0d9f35389d75cbdddf (diff) | |
| download | linux-4df61d87ad67dece3c0f70072d8b7cc3552f858a.tar.xz | |
scsi: ufshcd: release resources if probe fails
commit afa3dfd42d205b106787476647735aa1de1a5d02 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: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/scsi/ufs/ufshcd-pci.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufshcd-pltfrm.c | 5 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 3 |
3 files changed, 3 insertions, 7 deletions
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c index d15eaa466c59..52b546fb509b 100644 --- a/drivers/scsi/ufs/ufshcd-pci.c +++ b/drivers/scsi/ufs/ufshcd-pci.c @@ -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; } diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c index 9714f2a8b329..f58abfcdfe81 100644 --- a/drivers/scsi/ufs/ufshcd-pltfrm.c +++ b/drivers/scsi/ufs/ufshcd-pltfrm.c @@ -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; diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 7e6ba17d61f8..c94d465de941 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -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; |