linux/drivers/nvmem
Michael Walle 06be62083c nvmem: core: return -ENOENT if nvmem cell is not found
Prior to commit 5d8e6e6c10 ("nvmem: core: add an index parameter to
the cell") of_nvmem_cell_get() would return -ENOENT if the cell wasn't
found. Particularly, if of_property_match_string() returned -EINVAL,
that return code was passed as the index to of_parse_phandle(), which
then detected it as invalid and returned NULL. That led to an return
code of -ENOENT.

With the new code, the negative index will lead to an -EINVAL of
of_parse_phandle_with_optional_args() which pass straight to the
caller and break those who expect an -ENOENT.

Fix it by always returning -ENOENT.

Fixes: 5d8e6e6c10 ("nvmem: core: add an index parameter to the cell")
Reported-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/2143916.GUh0CODmnK@steina-w/
Signed-off-by: Michael Walle <michael@walle.cc>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230310094845.139400-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-10 10:55:49 +01:00
..
apple-efuses.c nvmem: Add Apple eFuse driver 2022-05-09 15:44:21 +02:00
bcm-ocotp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE (part 2) 2022-06-10 14:51:35 +02:00
brcm_nvram.c nvmem: brcm_nvram: Add check for kzalloc 2023-01-28 14:36:28 +01:00
core.c nvmem: core: return -ENOENT if nvmem cell is not found 2023-03-10 10:55:49 +01:00
imx-iim.c nvmem: imx-iim: Use of_device_get_match_data() 2021-02-04 17:04:18 +01:00
imx-ocotp-scu.c nvmem: imx: scu: correct the fuse word index 2020-01-10 13:52:12 +01:00
imx-ocotp.c nvmem: core: add an index parameter to the cell 2023-02-06 19:06:59 +01:00
jz4780-efuse.c nvmem: jz4780-efuse: Use PTR_ERR_OR_ZERO() to simplify code 2020-05-15 16:20:02 +02:00
Kconfig nvmem: stm32: fix OPTEE dependency 2023-02-06 19:07:00 +01:00
lan9662-otpc.c nvmem: lan9662-otp: Change return type of lan9662_otp_wait_flag_clear() 2022-11-22 18:22:05 +01:00
layerscape-sfp.c nvmem: sfp: Add support for TA 2.1 devices 2022-05-09 15:46:29 +02:00
lpc18xx_eeprom.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lpc18xx_otp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Makefile nvmem: stm32: add OP-TEE support for STM32MP13x 2023-02-06 19:06:59 +01:00
meson-efuse.c firmware: meson_sm: Rework driver as a proper platform driver 2019-10-03 08:43:33 -07:00
meson-mx-efuse.c nvmem: meson-mx-efuse: replace unnecessary devm_kstrdup() 2022-02-21 18:00:30 +01:00
microchip-otpc.c nvmem: microchip-otpc: add support 2022-07-08 15:45:05 +02:00
mtk-efuse.c nvmem: mtk-efuse: Simplify with devm_platform_get_and_ioremap_resource() 2022-07-08 15:45:05 +02:00
mxs-ocotp.c nvmem: mxs-ocotp: Use devm_add_action_or_reset() for cleanup 2020-03-23 20:05:23 +01:00
nintendo-otp.c nvmem: nintendo-otp: Add new driver for the Wii and Wii U OTP 2021-08-13 10:27:20 +02:00
qcom-spmi-sdam.c nvmem: qcom-spmi-sdam: register at device init time 2023-02-06 19:06:59 +01:00
qfprom.c nvmem: qfprom: using pm_runtime_resume_and_get instead of pm_runtime_get_sync 2022-05-09 15:45:39 +02:00
rave-sp-eeprom.c nvmem: rave-sp-eeprm: fix kernel-doc bad line warning 2023-02-06 19:06:59 +01:00
rmem.c nvmem: rmem: Fix return value check in rmem_read() 2022-11-22 18:21:58 +01:00
rockchip-efuse.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295 2019-06-05 17:36:38 +02:00
rockchip-otp.c nvmem: add Rockchip OTP driver 2019-11-05 18:35:33 +01:00
sc27xx-efuse.c nvmem: sc27xx: add sc2730 efuse support 2020-07-29 17:12:08 +02:00
snvs_lpgpr.c nvmem: convert comma to semicolon 2021-04-02 16:26:33 +02:00
sprd-efuse.c nvmem: sprd: Fix an error message 2021-05-14 13:39:50 +02:00
stm32-bsec-optee-ta.c nvmem: stm32: add OP-TEE support for STM32MP13x 2023-02-06 19:06:59 +01:00
stm32-bsec-optee-ta.h nvmem: stm32: add OP-TEE support for STM32MP13x 2023-02-06 19:06:59 +01:00
stm32-romem.c nvmem: stm32: detect bsec pta presence for STM32MP15x 2023-02-06 19:06:59 +01:00
sunplus-ocotp.c nvmem: sunplus-ocotp: drop useless probe confirmation 2022-04-24 17:15:15 +02:00
sunxi_sid.c nvmem: sunxi_sid: Drop the workaround on A64 2023-02-06 19:06:58 +01:00
u-boot-env.c nvmem: u-boot-env: add Broadcom format support 2022-11-23 19:44:52 +01:00
uniphier-efuse.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
vf610-ocotp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
zynqmp_nvmem.c firmware: xilinx: Remove eemi ops for get_chipid 2020-04-28 15:45:06 +02:00