diff options
| author | Miaoqian Lin <linmq006@gmail.com> | 2025-12-11 10:49:36 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-17 14:54:38 +0100 |
| commit | 3b4961313d31e200c9e974bb1536cdea217f78b5 (patch) | |
| tree | 8a783a44d59b6631c4246ab16bc3d72cf20ea082 /drivers/usb | |
| parent | 14ad4c10d5bdd413ff9a914260e89b5f54b7a2c7 (diff) | |
| download | linux-next-3b4961313d31e200c9e974bb1536cdea217f78b5.tar.gz linux-next-3b4961313d31e200c9e974bb1536cdea217f78b5.zip | |
usb: dwc3: of-simple: fix clock resource leak in dwc3_of_simple_probe
When clk_bulk_prepare_enable() fails, the error path jumps to
err_resetc_assert, skipping clk_bulk_put_all() and leaking the
clock references acquired by clk_bulk_get_all().
Add err_clk_put_all label to properly release clock resources
in all error paths.
Found via static analysis and code review.
Fixes: c0c61471ef86 ("usb: dwc3: of-simple: Convert to bulk clk API")
Cc: stable <stable@kernel.org>
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://patch.msgid.link/20251211064937.2360510-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc3/dwc3-of-simple.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c index a4954a21be93..c116143335d9 100644 --- a/drivers/usb/dwc3/dwc3-of-simple.c +++ b/drivers/usb/dwc3/dwc3-of-simple.c @@ -70,11 +70,11 @@ static int dwc3_of_simple_probe(struct platform_device *pdev) simple->num_clocks = ret; ret = clk_bulk_prepare_enable(simple->num_clocks, simple->clks); if (ret) - goto err_resetc_assert; + goto err_clk_put_all; ret = of_platform_populate(np, NULL, NULL, dev); if (ret) - goto err_clk_put; + goto err_clk_disable; pm_runtime_set_active(dev); pm_runtime_enable(dev); @@ -82,8 +82,9 @@ static int dwc3_of_simple_probe(struct platform_device *pdev) return 0; -err_clk_put: +err_clk_disable: clk_bulk_disable_unprepare(simple->num_clocks, simple->clks); +err_clk_put_all: clk_bulk_put_all(simple->num_clocks, simple->clks); err_resetc_assert: |