diff options
| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-07-01 12:43:52 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-07-01 22:09:20 +0300 |
| commit | 54872fea6a5ac967ec2272aea525d1438ac6735a (patch) | |
| tree | 36d8ae65dc5a058c7652bdbe4e9be546bd7163c8 /drivers/bus | |
| parent | d6fb6ee1820cb9c49717b8d28c5b2e940cb2e439 (diff) | |
| download | linux-54872fea6a5ac967ec2272aea525d1438ac6735a.tar.xz | |
bus: hisi_lpc: fix missing platform_device_put() in hisi_lpc_acpi_probe()
In error case in hisi_lpc_acpi_probe() after calling platform_device_add(),
hisi_lpc_acpi_remove() can't release the failed 'pdev', so it will be leak,
call platform_device_put() to fix this problem.
I'v constructed this error case and tested this patch on D05 board.
Fixes: 99c0228d6ff1 ("HISI LPC: Re-Add ACPI child enumeration support")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/hisi_lpc.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/bus/hisi_lpc.c b/drivers/bus/hisi_lpc.c index 378f5d62a991..e7eaa8784fee 100644 --- a/drivers/bus/hisi_lpc.c +++ b/drivers/bus/hisi_lpc.c @@ -503,13 +503,13 @@ static int hisi_lpc_acpi_probe(struct device *hostdev) { struct acpi_device *adev = ACPI_COMPANION(hostdev); struct acpi_device *child; + struct platform_device *pdev; int ret; /* Only consider the children of the host */ list_for_each_entry(child, &adev->children, node) { const char *hid = acpi_device_hid(child); const struct hisi_lpc_acpi_cell *cell; - struct platform_device *pdev; const struct resource *res; bool found = false; int num_res; @@ -571,22 +571,24 @@ static int hisi_lpc_acpi_probe(struct device *hostdev) ret = platform_device_add_resources(pdev, res, num_res); if (ret) - goto fail; + goto fail_put_device; ret = platform_device_add_data(pdev, cell->pdata, cell->pdata_size); if (ret) - goto fail; + goto fail_put_device; ret = platform_device_add(pdev); if (ret) - goto fail; + goto fail_put_device; acpi_device_set_enumerated(child); } return 0; +fail_put_device: + platform_device_put(pdev); fail: hisi_lpc_acpi_remove(hostdev); return ret; |