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linux/drivers/usb/host
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Linus Walleij cd136706b4 USB: bcma: Make GPIO explicitly optional 
What the code does is to not check the return value from
devm_gpiod_get() and then avoid using an erroneous GPIO descriptor
with IS_ERR_OR_NULL().

This will miss real errors from the GPIO core that should not be
ignored, such as probe deferral.

Instead request the GPIO as explicitly optional, which means that
if it doesn't exist, the descriptor returned will be NULL.

Then we can add error handling and also avoid just doing this on
the device tree path, and simplify the site where the optional
GPIO descriptor is used.

There were some problems with cleaning up this GPIO descriptor
use in the past, but this is the proper way to deal with it.

Cc: Rafał Miłecki <rafal@milecki.pl>
Cc: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20221107090753.1404679-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-08 16:39:56 +01:00
..
bcma-hcd.c USB: bcma: Make GPIO explicitly optional 2022-11-08 16:39:56 +01:00
ehci-atmel.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ehci-brcm.c
ehci-dbg.c
ehci-exynos.c usb: host: ehci-exynos: switch to using gpiod API 2022-09-30 13:57:10 +02:00
ehci-fsl.c usb: reduce kernel log spam on driver registration 2022-08-31 09:07:53 +02:00
ehci-fsl.h
ehci-grlib.c
ehci-hcd.c usb: reduce kernel log spam on driver registration 2022-08-31 09:07:53 +02:00
ehci-hub.c
ehci-mem.c
ehci-mv.c
ehci-npcm7xx.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ehci-omap.c usb: reduce kernel log spam on driver registration 2022-08-31 09:07:53 +02:00
ehci-orion.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ehci-pci.c USB: hcd-pci: Drop the unused id parameter from usb_hcd_pci_probe() 2022-09-01 16:08:35 +02:00
ehci-platform.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ehci-ppc-of.c usb: host: Fix refcount leak in ehci_hcd_ppc_of_probe 2022-06-10 11:21:55 +02:00
ehci-ps3.c
ehci-q.c usb: ehci: Use endpoint in URB to get maxpacket 2022-08-31 09:07:53 +02:00
ehci-sched.c
ehci-sh.c
ehci-spear.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ehci-st.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ehci-sysfs.c
ehci-timer.c
ehci-xilinx-of.c
ehci.h
fhci-dbg.c
fhci-hcd.c USB: FHCI: Switch to GPIO descriptors 2022-09-01 16:08:29 +02:00
fhci-hub.c USB: FHCI: Switch to GPIO descriptors 2022-09-01 16:08:29 +02:00
fhci-mem.c
fhci-q.c
fhci-sched.c
fhci-tds.c
fhci.h USB: FHCI: Switch to GPIO descriptors 2022-09-01 16:08:29 +02:00
fotg210-hcd.c usb: reduce kernel log spam on driver registration 2022-08-31 09:07:53 +02:00
fotg210.h
fsl-mph-dr-of.c drivers/usb/host/ehci-fsl: Fix interrupt setup in host mode. 2022-07-08 14:58:51 +02:00
isp116x-hcd.c
isp116x.h
isp1362-hcd.c
isp1362.h
Kconfig USB: host: npcm: Add NPCM8XX support 2022-08-19 11:03:30 +02:00
Makefile staging: octeon-usb: move driver out of staging 2022-06-21 16:43:37 +02:00
max3421-hcd.c usb: max-3421: drop unexpected word "the" in the comments 2022-06-24 13:39:53 +02:00
octeon-hcd.c staging: octeon-usb: move driver out of staging 2022-06-21 16:43:37 +02:00
octeon-hcd.h staging: octeon-usb: move driver out of staging 2022-06-21 16:43:37 +02:00
ohci-at91.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ohci-da8xx.c usb: reduce kernel log spam on driver registration 2022-08-31 09:07:53 +02:00
ohci-dbg.c
ohci-exynos.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ohci-hcd.c usb: reduce kernel log spam on driver registration 2022-08-31 09:07:53 +02:00
ohci-hub.c
ohci-mem.c
ohci-nxp.c usb: reduce kernel log spam on driver registration 2022-08-31 09:07:53 +02:00
ohci-omap.c usb: reduce kernel log spam on driver registration 2022-08-31 09:07:53 +02:00
ohci-pci.c USB: hcd-pci: Drop the unused id parameter from usb_hcd_pci_probe() 2022-09-01 16:08:35 +02:00
ohci-platform.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ohci-ppc-of.c usb: host: ohci-ppc-of: Fix refcount leak bug 2022-06-21 16:38:53 +02:00
ohci-ps3.c
ohci-pxa27x.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ohci-q.c
ohci-s3c2410.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ohci-sa1111.c ARM: sa1100/assabet: move dmabounce hack to ohci driver 2022-07-07 18:18:47 +02:00
ohci-sm501.c USB: ohci-sm501: Fix typo in comment 2022-06-21 16:39:39 +02:00
ohci-spear.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ohci-st.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
ohci-tmio.c
ohci.h
oxu210hp-hcd.c
pci-quirks.c
pci-quirks.h
r8a66597-hcd.c
r8a66597.h
sl811-hcd.c
sl811.h
sl811_cs.c
ssb-hcd.c
u132-hcd.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
uhci-debug.c
uhci-grlib.c usb/host: fix repeated words in comments 2022-07-27 14:33:33 +02:00
uhci-hcd.c usb: clean up after dropping driver registration log spam 2022-09-05 13:23:28 +02:00
uhci-hcd.h usb/host: fix repeated words in comments 2022-07-27 14:33:33 +02:00
uhci-hub.c
uhci-pci.c USB: hcd-pci: Drop the unused id parameter from usb_hcd_pci_probe() 2022-09-01 16:08:35 +02:00
uhci-platform.c
uhci-q.c
xen-hcd.c
xhci-dbg.c
xhci-dbgcap.c xhci: dbc: Fix memory leak in xhci_alloc_dbc() 2022-09-22 15:52:29 +02:00
xhci-dbgcap.h
xhci-dbgtty.c
xhci-debugfs.c
xhci-debugfs.h
xhci-ext-caps.c
xhci-ext-caps.h
xhci-histb.c
xhci-hub.c Revert "xhci: turn off port power in shutdown" 2022-08-25 17:48:30 +02:00
xhci-mem.c xhci: Remove device endpoints from bandwidth list when freeing the device 2022-10-25 19:53:41 +02:00
xhci-mtk-sch.c usb: xhci-mtk: fix bandwidth release issue 2022-08-19 10:39:08 +02:00
xhci-mtk.c usb: xhci-mtk: add support optional controller reset 2022-06-10 11:50:05 +02:00
xhci-mtk.h
xhci-mvebu.c
xhci-mvebu.h
xhci-pci-renesas.c usb: renesas-xhci: Do not print any log while fw verif success 2022-07-27 14:37:48 +02:00
xhci-pci.c xhci-pci: Set runtime PM as default policy on all xHC 1.2 or later devices 2022-10-25 19:53:41 +02:00
xhci-pci.h
xhci-plat.c Merge 6.0-rc4 into usb-next 2022-09-05 08:03:23 +02:00
xhci-plat.h
xhci-rcar.c
xhci-rcar.h
xhci-ring.c USB: xhci: Fix comment typo 2022-07-27 14:36:39 +02:00
xhci-tegra.c usb: xhci: tegra: Fix error check 2022-06-10 11:48:52 +02:00
xhci-trace.c
xhci-trace.h xhci: tracing: Use the new __vstring() helper 2022-07-15 17:44:41 -04:00
xhci.c xhci: Add quirk to reset host back to default state at shutdown 2022-10-25 19:53:41 +02:00
xhci.h xhci: Add quirk to reset host back to default state at shutdown 2022-10-25 19:53:41 +02:00