]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
USB: dwc3: qcom: fix resource leaks on probe deferral
authorJohan Hovold <johan+linaro@kernel.org>
Fri, 17 Nov 2023 17:36:48 +0000 (18:36 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 3 Dec 2023 06:31:22 +0000 (07:31 +0100)
commit0274728899704162c19724076f0691c7f9ba5f2a
treeb9a8064c39dc549678c569f20cc2c90d1fccc575
parente26c6febac43a2dd2c5fb993b2137489005d43bf
USB: dwc3: qcom: fix resource leaks on probe deferral

[ Upstream commit 51392a1879ff06dc21b68aef4825f6ef68a7be42 ]

The driver needs to deregister and free the newly allocated dwc3 core
platform device on ACPI probe errors (e.g. probe deferral) and on driver
unbind but instead it leaked those resources while erroneously dropping
a reference to the parent platform device which is still in use.

For OF probing the driver takes a reference to the dwc3 core platform
device which has also always been leaked.

Fix the broken ACPI tear down and make sure to drop the dwc3 core
reference for both OF and ACPI.

Fixes: 8fd95da2cfb5 ("usb: dwc3: qcom: Release the correct resources in dwc3_qcom_remove()")
Fixes: 2bc02355f8ba ("usb: dwc3: qcom: Add support for booting with ACPI")
Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver")
Cc: stable@vger.kernel.org # 4.18
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Lee Jones <lee@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Acked-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20231117173650.21161-2-johan+linaro@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 9cf87666fc6e ("USB: dwc3: qcom: fix ACPI platform device leak")
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/usb/dwc3/dwc3-qcom.c