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linux/drivers/usb/host
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Dan Carpenter 288b4fa179 Revert "usb: xhci: tegra: Fix error check" 
This reverts commit 18fc7c435b.

The reverted commit was based on static analysis and a misunderstanding
of how PTR_ERR() and NULLs are supposed to work.  When a function
returns both pointer errors and NULL then normally the NULL means
"continue operating without a feature because it was deliberately
turned off".  The NULL should not be treated as a failure.  If a driver
cannot work when that feature is disabled then the KConfig should
enforce that the function cannot return NULL.  We should not need to
test for it.

In this code, the patch means that certain tegra_xusb_probe() will
fail if the firmware supports power-domains but CONFIG_PM is disabled.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: 18fc7c435b ("usb: xhci: tegra: Fix error check")
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/8baace8d-fb4b-41a4-ad5f-848ae643a23b@moroto.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-25 17:44:10 +02:00
..
bcma-hcd.c USB: bcma: Make GPIO explicitly optional 2022-11-08 16:39:56 +01:00
ehci-atmel.c usb: ehci-atmel: Convert to platform remove callback returning void 2023-05-28 12:36:27 +01:00
ehci-brcm.c usb: ehci-brcm: Convert to platform remove callback returning void 2023-05-28 12:36:28 +01:00
ehci-dbg.c usb: host: {e|o}hci-dbg: kill useless 'ret' variable initializers 2022-02-15 15:11:20 +01:00
ehci-exynos.c usb: ehci-exynos: Convert to platform remove callback returning void 2023-05-28 12:36:28 +01:00
ehci-fsl.c usb: ehci-fsl: Convert to platform remove callback returning void 2023-05-28 12:36:28 +01:00
ehci-fsl.h
ehci-grlib.c usb: ehci-grlib: Convert to platform remove callback returning void 2023-05-28 12:36:28 +01:00
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 usb: ehci-mv: Convert to platform remove callback returning void 2023-05-28 12:36:28 +01:00
ehci-npcm7xx.c usb: ehci-npcm7xx: Convert to platform remove callback returning void 2023-05-28 12:36:28 +01:00
ehci-omap.c usb: ehci-omap: Convert to platform remove callback returning void 2023-05-28 12:36:28 +01:00
ehci-orion.c usb: ehci-orion: Convert to platform remove callback returning void 2023-05-28 12:36:28 +01:00
ehci-pci.c USB: Extend pci resume function to handle PM events 2023-05-13 17:33:18 +09:00
ehci-platform.c usb: ehci-platform: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
ehci-ppc-of.c usb: ehci-ppc-of: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
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 usb: ehci-sh: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
ehci-spear.c usb: ehci-spear: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
ehci-st.c usb: ehci-st: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
ehci-sysfs.c
ehci-timer.c
ehci-xilinx-of.c usb: ehci-xilinx-of: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
ehci.h usb: host: fix a typo in ehci.h 2022-11-29 08:56:09 +01:00
fhci-dbg.c
fhci-hcd.c usb: host: fhci-hcd: Convert to platform remove callback returning void 2023-05-29 15:53:24 +01:00
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
fsl-mph-dr-of.c usb: fsl-mph-dr-of: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
isp116x-hcd.c usb: isp116x-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:29 +01:00
isp116x.h
isp1362-hcd.c usb: isp1362-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:30 +01:00
isp1362.h
Kconfig usb: add HAS_IOPORT dependencies 2023-05-29 15:28:34 +01:00
Makefile usb: host: u132-hcd: Delete driver 2023-03-21 14:06:11 +01:00
max3421-hcd.c usb: host: max3421-hcd: drop of_match_ptr for ID table 2023-03-16 12:15:23 +01:00
octeon-hcd.c usb: octeon-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:30 +01:00
octeon-hcd.h staging: octeon-usb: move driver out of staging 2022-06-21 16:43:37 +02:00
ohci-at91.c usb: ohci-at91: Fix the unhandle interrupt when resume 2023-07-25 17:39:10 +02:00
ohci-da8xx.c usb: ohci-da8xx: Convert to platform remove callback returning void 2023-05-28 12:36:30 +01:00
ohci-dbg.c usb: host: {e|o}hci-dbg: kill useless 'ret' variable initializers 2022-02-15 15:11:20 +01:00
ohci-exynos.c usb: ohci-exynos: Convert to platform remove callback returning void 2023-05-28 12:36:30 +01:00
ohci-hcd.c usb: remove ohci-tmio driver 2023-02-01 17:23:38 +01:00
ohci-hub.c
ohci-mem.c
ohci-nxp.c usb: ohci-nxp: Convert to platform remove callback returning void 2023-05-28 12:36:30 +01:00
ohci-omap.c usb: ohci-omap: Convert to platform remove callback returning void 2023-05-28 12:36:30 +01:00
ohci-pci.c USB: Extend pci resume function to handle PM events 2023-05-13 17:33:18 +09:00
ohci-platform.c usb: host: ohci-platform: increase max clock number to 4 2023-05-29 15:54:05 +01:00
ohci-ppc-of.c usb: ohci-ppc-of: Convert to platform remove callback returning void 2023-05-28 12:36:31 +01:00
ohci-ps3.c
ohci-pxa27x.c USB / Thunderbolt driver updates for 6.5-rc1 2023-07-03 13:23:10 -07:00
ohci-q.c
ohci-s3c2410.c usb: ohci-s3c2410: Convert to platform remove callback returning void 2023-05-28 12:36:31 +01:00
ohci-sa1111.c ARM: sa1100: remove unused board files 2023-01-12 10:53:12 +01:00
ohci-sm501.c usb: ohci-sm501: Convert to platform remove callback returning void 2023-05-28 12:36:31 +01:00
ohci-spear.c usb: ohci-spear: Convert to platform remove callback returning void 2023-05-28 12:36:31 +01:00
ohci-st.c usb: ohci-st: Convert to platform remove callback returning void 2023-05-28 12:36:31 +01:00
ohci.h
oxu210hp-hcd.c usb: oxu210hp-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:31 +01:00
pci-quirks.c usb: pci-quirks: Reduce the length of a spinlock section in usb_amd_find_chipset_info() 2023-03-29 09:02:19 +02:00
pci-quirks.h
r8a66597-hcd.c usb: r8a66597-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:31 +01:00
r8a66597.h
sl811_cs.c
sl811-hcd.c usb: sl811-hcd: Convert to platform remove callback returning void 2023-05-28 12:36:32 +01:00
sl811.h
ssb-hcd.c
uhci-debug.c
uhci-grlib.c usb: uhci-grlib: Convert to platform remove callback returning void 2023-05-28 12:36:32 +01:00
uhci-hcd.c usb: uhci: handle HAS_IOPORT dependencies 2023-05-29 15:29:03 +01:00
uhci-hcd.h usb: uhci: handle HAS_IOPORT dependencies 2023-05-29 15:29:03 +01:00
uhci-hub.c
uhci-pci.c Merge 6.4-rc4 into usb-next 2023-05-28 15:25:53 +01:00
uhci-platform.c usb: uhci-platform: Convert to platform remove callback returning void 2023-05-28 12:36:32 +01:00
uhci-q.c
xen-hcd.c xen: make remove callback of xen driver void returned 2022-12-15 16:06:10 +01:00
xhci-dbg.c
xhci-dbgcap.c xhci: dbc: Provide sysfs option to configure dbc descriptors 2023-03-23 17:25:22 +01:00
xhci-dbgcap.h xhci: dbc: Provide sysfs option to configure dbc descriptors 2023-03-23 17:25:22 +01:00
xhci-dbgtty.c xhci: dbgtty: use IDR to support several dbc instances. 2022-02-17 16:20:45 +01:00
xhci-debugfs.c xhci: fix debugfs register accesses while suspended 2023-04-20 10:13:06 +02:00
xhci-debugfs.h
xhci-ext-caps.c
xhci-ext-caps.h
xhci-histb.c xhci: get rid of XHCI_PLAT quirk that used to prevent MSI setup 2023-06-13 11:34:50 +02:00
xhci-hub.c xhci: decouple usb2 port resume and get_port_status request handling 2023-02-02 16:44:42 +01:00
xhci-mem.c xhci: Show ZHAOXIN xHCI root hub speed correctly 2023-06-13 11:34:50 +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: set the dma max_seg_size 2023-07-25 17:40:54 +02:00
xhci-mtk.h usb: xhci-mtk: add optional frame count clock 2023-04-20 10:13:39 +02:00
xhci-mvebu.c usb: host: xhci: mvebu: Iterate over array indexes instead of using pointer math 2023-02-06 13:46:42 +01:00
xhci-mvebu.h Revert "usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720" 2022-02-25 19:12:21 +05:30
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 Revert "xhci: add quirk for host controllers that don't update endpoint DCS" 2023-07-25 17:42:08 +02:00
xhci-pci.h
xhci-plat.c usb: host: xhci-plat: Set XHCI_STATE_REMOVING before resuming XHCI HC 2023-06-23 09:55:09 +02:00
xhci-plat.h usb: xhci-plat: Convert to platform remove callback returning void 2023-05-30 15:27:17 +01:00
xhci-rcar.c usb: xhci-plat: Convert to platform remove callback returning void 2023-05-30 15:27:17 +01:00
xhci-ring.c Revert "xhci: add quirk for host controllers that don't update endpoint DCS" 2023-07-25 17:42:08 +02:00
xhci-rzv2m.c xhci: host: Add Renesas RZ/V2M SoC support 2023-01-25 15:48:17 +01:00
xhci-rzv2m.h xhci: host: Add Renesas RZ/V2M SoC support 2023-01-25 15:48:17 +01:00
xhci-tegra.c Revert "usb: xhci: tegra: Fix error check" 2023-07-25 17:44:10 +02:00
xhci-trace.c xhci: Move functions to setup msi to xhci-pci 2023-03-23 17:25:22 +01:00
xhci-trace.h xhci: Stop unnecessary tracking of free trbs in a ring 2023-06-13 11:34:50 +02:00
xhci.c usb: host: xhci: Do not re-initialize the XHCI HC if being removed 2023-06-23 09:55:09 +02:00
xhci.h xhci: Show ZHAOXIN xHCI root hub speed correctly 2023-06-13 11:34:50 +02:00