Thinh Nguyen 3cb692555a usb: dwc3: gadget: Fix event pending check ... commit 7441b27338 upstream. The DWC3_EVENT_PENDING flag is used to protect against invalid call to top-half interrupt handler, which can occur when there's a delay in software detection of the interrupt line deassertion. However, the clearing of this flag was done prior to unmasking the interrupt line, creating opportunity where the top-half handler can come. This breaks the serialization and creates a race between the top-half and bottom-half handler, resulting in losing synchronization between the controller and the driver when processing events. To fix this, make sure the clearing of the DWC3_EVENT_PENDING is done at the end of the bottom-half handler. Fixes: d325a1de49 ("usb: dwc3: gadget: Prevent losing events in event cache") Cc: stable@vger.kernel.org Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/8670aaf1cf52e7d1e6df2a827af2d77263b93b75.1656380429.git.Thinh.Nguyen@synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-07-21 21:24:42 +02:00
..
Kconfig	…
Makefile	…
core.c	…
core.h	…
debug.h	…
debugfs.c	…
drd.c	extcon: Fix extcon_get_extcon_dev() error handling	2022-06-14 18:36:21 +02:00
dwc3-exynos.c	…
dwc3-haps.c	…
dwc3-imx8mp.c	…
dwc3-keystone.c	…
dwc3-meson-g12a.c	…
dwc3-of-simple.c	…
dwc3-omap.c	…
dwc3-pci.c	usb: dwc3: pci: Fix pm_runtime_get_sync() error checking	2022-06-14 18:36:04 +02:00
dwc3-qcom.c	…
dwc3-st.c	…
dwc3-xilinx.c	…
ep0.c	…
gadget.c	usb: dwc3: gadget: Fix event pending check	2022-07-21 21:24:42 +02:00
gadget.h	…
host.c	…
io.h	…
trace.c	…
trace.h	…
ulpi.c	…