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OpenCloudOS-Kernel/drivers/rtc
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Joy Chakraborty 0cff6d4953 rtc: abx80x: Fix return value of nvmem callback on read 
commit fc82336b50e7652530bc32caec80be0f8792513b upstream.

Read callbacks registered with nvmem core expect 0 to be returned on
success and a negative value to be returned on failure.

abx80x_nvmem_xfer() on read calls i2c_smbus_read_i2c_block_data() which
returns the number of bytes read on success as per its api description,
this return value is handled as an error and returned to nvmem even on
success.

Fix to handle all possible values that would be returned by
i2c_smbus_read_i2c_block_data().

Fixes: e90ff8ede7 ("rtc: abx80x: Add nvmem support")
Cc: stable@vger.kernel.org
Signed-off-by: Joy Chakraborty <joychakr@google.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20240613120750.1455209-1-joychakr@google.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2024-08-03 08:54:29 +02:00
..
Kconfig rtc: mt6397: select IRQ_DOMAIN instead of depending on it 2024-03-26 18:20:06 -04:00
Makefile rtc: Add rtc driver for the Loongson family chips 2023-06-26 01:19:11 +02:00
class.c driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00
dev.c rtc: Remove unused rtc_dev_exit(). 2022-06-24 21:24:02 +02:00
interface.c rtc: interface: Add RTC offset to alarm after fix-up 2024-08-03 08:54:10 +02:00
lib.c rtc: Improve performance of rtc_time64_to_tm(). Add tests. 2021-08-10 00:09:21 +02:00
lib_test.c rtc: test: Fix invalid format specifier. 2024-03-26 18:19:18 -04:00
nvmem.c nvmem: add explicit config option to read old syntax fixed OF cells 2024-05-17 12:01:55 +02:00
proc.c rtc: fix snprintf() checking in is_rtc_hctosys() 2021-05-25 00:36:11 +02:00
rtc-88pm80x.c rtc: 88pm80x: Convert to platform remove callback returning void 2023-03-17 23:03:16 +01:00
rtc-88pm860x.c rtc: 88pm860x: Convert to platform remove callback returning void 2023-03-17 23:03:16 +01:00
rtc-ab-b5ze-s3.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ab-eoz9.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ab8500.c rtc: ab8500: Convert to platform remove callback returning void 2023-03-17 23:03:16 +01:00
rtc-abx80x.c rtc: abx80x: Fix return value of nvmem callback on read 2024-08-03 08:54:29 +02:00
rtc-ac100.c rtc: ac100: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-armada38x.c rtc: remove redundant of_match_ptr() 2023-08-10 09:45:41 +02:00
rtc-as3722.c
…
rtc-asm9260.c rtc: asm9260: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-aspeed.c rtc: remove redundant of_match_ptr() 2023-08-10 09:45:41 +02:00
rtc-at91rm9200.c rtc: remove redundant of_match_ptr() 2023-08-10 09:45:41 +02:00
rtc-at91sam9.c rtc: remove redundant of_match_ptr() 2023-08-10 09:45:41 +02:00
rtc-au1xxx.c rtc: au1xxx: convert to SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-bd70528.c rtc: bd70528: Drop BD70528 support 2021-06-20 22:24:52 +02:00
rtc-bq32k.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-bq4802.c
…
rtc-brcmstb-waketimer.c rtc: brcmstb-waketimer: support level alarm_irq 2023-11-20 11:59:30 +01:00
rtc-cadence.c rtc: cadence: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-cmos.c rtc: cmos: Fix return value of nvmem callbacks 2024-08-03 08:54:25 +02:00
rtc-core.h rtc: Remove unused rtc_dev_exit(). 2022-06-24 21:24:02 +02:00
rtc-cpcap.c
…
rtc-cros-ec.c rtc: cros-ec: Detect and report supported alarm window size 2023-08-27 23:50:22 +02:00
rtc-da9052.c
…
rtc-da9055.c
…
rtc-da9063.c rtc: da9063: Mark the alarm IRQ as a wake IRQ 2023-08-17 01:09:50 +02:00
rtc-digicolor.c
…
rtc-ds1216.c
…
rtc-ds1286.c
…
rtc-ds1302.c rtc: ds1302: remove unnecessary spi_set_drvdata() 2022-11-15 21:01:51 +01:00
rtc-ds1305.c rtc: ds1305: Report maximum alarm limit to rtc core 2023-08-27 23:50:22 +02:00
rtc-ds1307.c rtc: ds1307: fix Wvoid-pointer-to-enum-cast warning 2023-08-16 01:32:08 +02:00
rtc-ds1343.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
rtc-ds1347.c rtc: ds1347: fix value written to century register 2022-11-15 21:01:51 +01:00
rtc-ds1374.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ds1390.c rtc: ds1390: mark OF related data as maybe unused 2023-03-17 23:23:22 +01:00
rtc-ds1511.c
…
rtc-ds1553.c
…
rtc-ds1672.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ds1685.c rtc: ds1685: use EXPORT_SYMBOL_GPL for ds1685_rtc_poweroff 2023-08-02 11:18:22 -07:00
rtc-ds1742.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-ds2404.c rtc: ds2404: Convert to GPIO descriptors 2023-08-17 00:55:56 +02:00
rtc-ds3232.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-efi.c rtc: efi: Avoid spamming the log on RTC read failure 2023-02-22 21:07:53 +01:00
rtc-em3027.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ep93xx.c
…
rtc-fm3130.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-fsl-ftm-alarm.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-ftrtc010.c rtc: ftrtc010: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-gamecube.c rtc: gamecube: Always reset HW_SRNPROT after read 2022-08-23 22:27:58 +02:00
rtc-generic.c
…
rtc-goldfish.c clocksource/drivers: Add a goldfish-timer clocksource 2022-04-11 11:48:01 +02:00
rtc-hid-sensor-time.c rtc: hid-sensor-time: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-hym8563.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-imx-sc.c
…
rtc-imxdi.c rtc: imxdi: add wakeup support 2021-05-25 00:41:25 +02:00
rtc-isl1208.c rtc: isl1208: Fix return value of nvmem callbacks 2024-08-03 08:54:29 +02:00
rtc-isl12022.c rtc: isl12022: implement support for the #clock-cells DT property 2023-08-16 01:27:01 +02:00
rtc-isl12026.c rtc: isl12026: Drop "_new" from probe callback name 2023-07-27 23:32:08 +02:00
rtc-jz4740.c rtc: jz4740: fix Wvoid-pointer-to-enum-cast warning 2023-08-16 01:32:08 +02:00
rtc-loongson.c rtc: Add rtc driver for the Loongson family chips 2023-06-26 01:19:11 +02:00
rtc-lp8788.c
…
rtc-lpc24xx.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-lpc32xx.c
…
rtc-m41t80.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-m41t93.c
…
rtc-m41t94.c
…
rtc-m48t35.c
…
rtc-m48t59.c
…
rtc-m48t86.c rtc: m48t86: add DT support for m48t86 2023-08-28 00:01:51 +02:00
rtc-max6900.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-max6902.c
…
rtc-max6916.c
…
rtc-max8907.c rtc: max8907: Drop unused i2c include 2023-02-01 09:13:35 +01:00
rtc-max8925.c
…
rtc-max8997.c
…
rtc-max8998.c
…
rtc-max77686.c rtc: max77686: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-mc13xxx.c rtc: mc13xxx: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-mc146818-lib.c rtc: Extend timeout for waiting for UIP to clear to 1s 2024-01-31 16:18:56 -08:00
rtc-mcp795.c rtc: mcp795: Add SPI ID table 2021-10-01 23:28:28 +02:00
rtc-meson-vrtc.c rtc: meson-vrtc: Use ktime_get_real_ts64() to get the current time 2023-03-21 21:15:10 +01:00
rtc-meson.c rtc: meson: Fix email address in MODULE_AUTHOR 2022-05-18 00:20:39 +02:00
rtc-moxart.c rtc: moxart: switch to using gpiod API 2023-02-09 23:31:46 +01:00
rtc-mpc5121.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-mpfs.c rtc: mpfs: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-msc313.c rtc: msc313: Fix function prototype mismatch in msc313_rtc_probe() 2022-12-11 18:14:01 +01:00
rtc-msm6242.c
…
rtc-mt2712.c
…
rtc-mt6397.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-mt7622.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-mv.c
…
rtc-mxc.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-mxc_v2.c rtc: mxc_v2: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-nct3018y.c rtc: remove redundant of_match_ptr() 2023-08-10 09:45:41 +02:00
rtc-ntxec.c
…
rtc-nxp-bbnsm.c rtc: bbnsm: Add the bbnsm rtc support 2023-02-22 12:25:32 +01:00
rtc-omap.c rtc: omap: Do not check for 0 return after calling platform_get_irq() 2023-08-17 01:17:34 +02:00
rtc-opal.c rtc: opal: switch to RTC_FEATURE_UPDATE_INTERRUPT 2022-03-23 19:58:39 +01:00
rtc-optee.c rtc: optee: add RTC driver for OP-TEE RTC PTA 2022-03-25 11:42:50 +01:00
rtc-palmas.c rtc: palmas: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-pcap.c
…
rtc-pcf2123.c rtc: pcf2123: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-pcf2127.c rtc: pcf2127: remove useless check 2023-08-27 23:53:06 +02:00
rtc-pcf8523.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-pcf8563.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-pcf8583.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-pcf50633.c rtc: pcf50633: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-pcf85063.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-pcf85363.c rtc: pcf85363: fix wrong mask/val parameters in regmap_update_bits call 2023-11-20 11:59:30 +01:00
rtc-pic32.c rtc: pic32: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-pl030.c
…
rtc-pl031.c rtc: pl031: fix rtc features null pointer dereference 2022-03-23 19:58:37 +01:00
rtc-pm8xxx.c rtc: pm8xxx: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-ps3.c
…
rtc-pxa.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-r7301.c
…
rtc-r9701.c
…
rtc-rc5t583.c rtc: rc5t583: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-rc5t619.c
…
rtc-rk808.c rtc: rk808: reduce 'struct rk808' usage 2022-12-11 20:56:33 +01:00
rtc-rp5c01.c
…
rtc-rs5c313.c rtc: rs5c313: correct some spelling mistakes 2022-12-15 23:34:31 +01:00
rtc-rs5c348.c
…
rtc-rs5c372.c rtc: rs5c372: fix Wvoid-pointer-to-enum-cast warning 2023-08-16 01:32:08 +02:00
rtc-rtd119x.c rtc: rtd119x: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-rv3028.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-rv3029c2.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-rv3032.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-rv8803.c rtc: rv8803: fix Wvoid-pointer-to-enum-cast warning 2023-08-16 01:32:08 +02:00
rtc-rx4581.c
…
rtc-rx6110.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-rx8010.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-rx8025.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-rx8581.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-rzn1.c rtc: rzn1: Report maximum alarm limit to rtc core 2023-08-27 23:50:22 +02:00
rtc-s3c.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-s3c.h
…
rtc-s5m.c rtc: s5m: Drop S5M8763 support 2023-04-26 11:40:26 +01:00
rtc-s35390a.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-sa1100.c rtc: sa1100: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-sa1100.h
…
rtc-sc27xx.c rtc: sc27xx: Fix format of SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-sd3078.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-sh.c
…
rtc-snvs.c rtc: snvs: Allow a time difference on clock register read 2022-11-15 21:25:44 +01:00
rtc-spear.c rtc: spear: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-st-lpc.c rtc: st-lpc: Simplify clk handling in st_rtc_probe() 2023-06-26 00:53:19 +02:00
rtc-starfire.c
…
rtc-stk17ta8.c
…
rtc-stm32.c rtc: stm32: Use NOIRQ_SYSTEM_SLEEP_PM_OPS() 2023-08-17 00:53:00 +02:00
rtc-stmp3xxx.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-sun4v.c
…
rtc-sun6i.c rtc: sun6i: remove unnecessary message 2023-09-06 01:26:04 +02:00
rtc-sunplus.c rtc: sunplus: Clean up redundant dev_err_probe() 2023-08-10 09:35:28 +02:00
rtc-sunxi.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-tegra.c rtc: tegra: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-test.c
…
rtc-ti-k3.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-tps6586x.c rtc: tps6586x: Report maximum alarm limit to rtc core 2023-08-27 23:50:22 +02:00
rtc-tps65910.c rtc: tps65910: Remove redundant dev_warn() and do not check for 0 return after calling platform_get_irq() 2023-08-17 01:17:34 +02:00
rtc-twl.c rtc: twl: remove unnecessary messages 2023-09-06 01:26:04 +02:00
rtc-vt8500.c rtc: vt8500: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-wilco-ec.c
…
rtc-wm831x.c
…
rtc-wm8350.c rtc: wm8350: remove unnecessary messages 2023-09-06 01:26:04 +02:00
rtc-x1205.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-xgene.c rtc: xgene: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-zynqmp.c rtc: zynqmp: Convert to platform remove callback returning void 2023-03-17 23:03:19 +01:00
sysfs.c rtc: Include <linux/kstrtox.h> when appropriate 2022-11-15 21:01:51 +01:00