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linux/drivers/rtc
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Johan Hovold 62ab6d70e5 rtc: pm8xxx: fix set-alarm race 
commit c88db0eff9722fc2b6c4d172a50471d20e08ecc6 upstream.

Make sure to disable the alarm before updating the four alarm time
registers to avoid spurious alarms during the update.

Note that the disable needs to be done outside of the ctrl_reg_lock
section to prevent a racing alarm interrupt from disabling the newly set
alarm when the lock is released.

Fixes: 9a9a54ad7aa2 ("drivers/rtc: add support for Qualcomm PMIC8xxx RTC")
Cc: stable@vger.kernel.org      # 3.1
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: David Collins <quic_collinsd@quicinc.com>
Link: https://lore.kernel.org/r/20230202155448.6715-2-johan+linaro@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-11 16:31:48 +01:00
..
class.c
rtc: remove irq_task and irq_task_lock
2018-07-26 15:08:53 +02:00
hctosys.c
rtc: hctosys: Add missing range error reporting
2018-11-21 09:19:23 +01:00
interface.c
rtc: disable uie before setting time and enable after
2019-12-17 20:35:43 +01:00
Kconfig
rtc: s5m: select REGMAP_I2C
2021-03-04 09:39:44 +01:00
Makefile
RTC for 4.17
2018-04-10 10:22:27 -07:00
nvmem.c
rtc: nvmem: don't use IS_ERR_OR_NULL
2018-05-21 22:34:38 +02:00
rtc-88pm80x.c
rtc: 88pm80x: fix unintended sign extension
2020-01-27 14:50:20 +01:00
rtc-88pm860x.c
rtc: 88pm860x: fix possible race condition
2020-04-23 10:30:18 +02:00
rtc-ab3100.c
rtc: stop validating rtc_time after rtc_time64_to_tm
2018-03-01 10:49:41 +01:00
rtc-ab8500.c
rtc: ab8500: Drop AB8540 support
2018-03-27 10:45:05 +02:00
rtc-ab-b5ze-s3.c
rtc: ab-b5ze-s3: let the core handle the RTC range
2018-05-17 22:23:25 +02:00
rtc-abx80x.c
rtc: abx80x: remove useless message
2018-03-02 10:12:23 +01:00
rtc-ac100.c
treewide: Use struct_size() for devm_kmalloc() and friends
2018-06-06 11:15:43 -07:00
rtc-armada38x.c
rtc: armada38x: fix possible race condition
2019-11-20 18:47:52 +01:00
rtc-as3722.c
…
rtc-asm9260.c
rtc: asm9260: fix module autoload
2016-10-19 08:45:48 +02:00
rtc-at91rm9200.c
rtc: at91rm9200: add range
2018-05-17 22:23:14 +02:00
rtc-at91rm9200.h
…
rtc-at91sam9.c
rtc: at91sam9: Set name of regmap_config
2018-03-17 14:20:57 +01:00
rtc-au1xxx.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-bq32k.c
rtc: remove VLA usage
2018-03-17 14:20:56 +01:00
rtc-bq4802.c
rtc: bq4802: add error handling for devm_ioremap
2018-07-11 20:41:01 +02:00
rtc-brcmstb-waketimer.c
rtc: brcmstb-waketimer: add missed clk_disable_unprepare
2020-01-17 19:47:13 +01:00
rtc-cmos.c
rtc: cmos: take rtc_lock while reading from CMOS
2022-01-27 09:04:15 +01:00
rtc-coh901331.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
rtc-core.h
rtc: sysfs: facilitate attribute add to rtc device
2018-08-14 22:56:27 +02:00
rtc-cpcap.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
rtc-cros-ec.c
rtc: cros-ec: Fail suspend/resume if wake IRQ can't be configured
2019-05-08 07:21:45 +02:00
rtc-da9052.c
rtc: diasemi: stop validating rtc_time in .read_time
2018-03-02 10:11:02 +01:00
rtc-da9055.c
rtc: diasemi: stop validating rtc_time in .read_time
2018-03-02 10:11:02 +01:00
rtc-da9063.c
rtc: da9063: set uie_unsupported when relevant
2019-05-08 07:21:49 +02:00
rtc-davinci.c
rtc: constify rtc_class_ops structures
2016-09-02 01:24:06 +02:00
rtc-dev.c
rtc: simplify rtc_irq_set_state/rtc_irq_set_freq
2018-07-26 15:08:53 +02:00
rtc-digicolor.c
rtc: constify rtc_class_ops structures
2016-09-02 01:24:06 +02:00
rtc-dm355evm.c
mfd: dm355evm_msp: Move header file out of I2C realm
2017-08-15 08:06:14 +01:00
rtc-ds1216.c
rtc: simplify getting .drvdata
2018-05-03 22:08:00 +02:00
rtc-ds1286.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-ds1302.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-ds1305.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-ds1307.c
rtc: ds1307: Fix wday settings for rx8130
2021-05-22 10:59:43 +02:00
rtc-ds1343.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-ds1347.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-ds1374.c
rtc: ds1374: fix possible race condition
2020-10-01 13:14:38 +02:00
rtc-ds1390.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-ds1511.c
rtc: simplify getting .drvdata
2018-05-03 22:08:00 +02:00
rtc-ds1553.c
rtc: simplify getting .drvdata
2018-05-03 22:08:00 +02:00
rtc-ds1672.c
rtc: ds1672: fix unintended sign extension
2020-01-27 14:50:19 +01:00
rtc-ds1685.c
rtc: ds1685: remove sysfs access to control registers
2018-06-20 12:38:14 +02:00
rtc-ds1742.c
rtc: ds1742: don't explicitly specify word_size and stride of nvmem
2018-05-21 22:34:36 +02:00
rtc-ds2404.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-ds3232.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-efi-platform.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
rtc-efi.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-em3027.c
rtc: constify i2c_device_id
2017-09-01 01:10:11 +02:00
rtc-ep93xx.c
…
rtc-fm3130.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-ftrtc010.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
rtc-generic.c
…
rtc-goldfish.c
rtc: goldfish: Enable interrupt in set_alarm() when necessary
2020-08-26 10:31:00 +02:00
rtc-hid-sensor-time.c
iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbers
2018-12-05 19:32:13 +01:00
rtc-hym8563.c
rtc: hym8563: Return -EINVAL if the time is known to be invalid
2020-02-14 16:33:24 -05:00
rtc-imxdi.c
sched/wait: Disambiguate wq_entry->task_list and wq_head->task_list naming
2017-06-20 12:19:14 +02:00
rtc-isl1208.c
rtc: isl1208: avoid possible sysfs race
2019-11-20 18:47:52 +01:00
rtc-isl12022.c
rtc: isl12022: use true and false for boolean values
2018-04-03 16:40:46 +02:00
rtc-isl12026.c
rtc: isl12026: fixup nvmem registration
2018-03-17 14:20:51 +01:00
rtc-jz4740.c
rtc: stop validating rtc_time after rtc_time_to_tm
2018-03-01 10:49:41 +01:00
rtc-lib.c
rtc: fix rtc_time64_to_tm for 3477
2018-03-17 14:20:50 +01:00
rtc-lp8788.c
…
rtc-lpc24xx.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-lpc32xx.c
rtc: simplify getting .drvdata
2018-05-03 22:08:00 +02:00
rtc-ls1x.c
rtc: ls1x: add range
2018-05-18 09:38:22 +02:00
rtc-m41t80.c
rtc: m41t80: Correct alarm month range with RTC reads
2019-01-09 17:38:48 +01:00
rtc-m41t93.c
rtc: m41t93: stop validating rtc_time in .read_time
2018-03-02 10:12:19 +01:00
rtc-m41t94.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-m48t35.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-m48t59.c
rtc: m48t59: remove redundant pointer 'name'
2018-07-12 21:17:36 +02:00
rtc-m48t86.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-max6900.c
rtc: max6900: remove useless indirection
2018-03-17 14:20:46 +01:00
rtc-max6902.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-max6916.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-max8907.c
…
rtc-max8925.c
rtc: max8925: remove redundant check on ret
2017-07-31 00:17:48 +02:00
rtc-max8997.c
rtc: max8997: Fix the returned value in case of error in 'max8997_rtc_read_alarm()'
2019-12-13 08:51:35 +01:00
rtc-max8998.c
rtc: maxim: Add SPDX license identifiers
2018-08-14 23:38:45 +02:00
rtc-max77686.c
rtc: max77686: Do not enforce (incorrect) interrupt trigger type
2021-07-28 11:13:44 +02:00
rtc-mc13xxx.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
rtc-mc146818-lib.c
rtc: cmos: Evaluate century appropriate
2022-02-08 18:23:18 +01:00
rtc-mcp795.c
rtc: remove VLA usage
2018-03-17 14:20:56 +01:00
rtc-moxart.c
…
rtc-mpc5121.c
rtc: stop validating rtc_time after rtc_time_to_tm
2018-03-01 10:49:41 +01:00
rtc-mrst.c
rtc: mrst: fix error code in probe()
2018-06-20 12:43:11 +02:00
rtc-msm6242.c
rtc: msm6242: Fix reading of 10-hour digit
2020-01-17 19:47:13 +01:00
rtc-mt6397.c
rtc: mt6397: check return value after calling platform_get_resource()
2022-06-14 16:59:32 +02:00
rtc-mt7622.c
rtc: mt7622: fix module autoloading for OF platform drivers
2018-04-03 16:40:48 +02:00
rtc-mv.c
rtc: simplify getting .drvdata
2018-05-03 22:08:00 +02:00
rtc-mxc_v2.c
rtc: mxc_v2: Add missing clk_disable_unprepare()
2023-01-18 11:30:32 +01:00
rtc-mxc.c
rtc: mxc: Switch to SPDX identifier
2018-05-22 09:47:17 +02:00
rtc-nuc900.c
rtc: nuc900: stop validating rtc_time in .read_time
2018-03-02 10:12:17 +01:00
rtc-omap.c
rtc: omap: Use define directive for PIN_CONFIG_ACTIVE_HIGH
2020-04-17 10:48:51 +02:00
rtc-opal.c
rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops
2018-04-25 13:24:13 +10:00
rtc-palmas.c
rtc: constify rtc_class_ops structures
2016-09-02 01:24:06 +02:00
rtc-pcap.c
rtc: simplify getting .drvdata
2018-05-03 22:08:00 +02:00
rtc-pcf2123.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-pcf2127.c
rtc: pcf2127: bugfix: read rtc disables watchdog
2020-01-27 14:51:07 +01:00
rtc-pcf8523.c
rtc: pcf8523: set xtal load capacitance from DT
2019-11-06 13:05:33 +01:00
rtc-pcf8563.c
rtc: pcf8563: Clear event flags and disable interrupts before requesting irq
2020-01-27 14:50:56 +01:00
rtc-pcf8583.c
…
rtc-pcf50633.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-pcf85063.c
rtc: pcf85063: preserve control register value between stop and start
2018-07-28 14:49:25 +02:00
rtc-pcf85363.c
rtc: pcf85363/pcf85263: fix regmap error in set_time
2019-10-07 18:57:12 +02:00
rtc-pic32.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-pl030.c
rtc: pl030: fix possible race condition
2019-11-20 18:46:18 +01:00
rtc-pl031.c
rtc: pl031: make interrupt optional
2017-10-12 16:30:30 +02:00
rtc-pm8xxx.c
rtc: pm8xxx: fix set-alarm race
2023-03-11 16:31:48 +01:00
rtc-proc.c
rtc: fix snprintf() checking in is_rtc_hctosys()
2021-07-20 16:16:14 +02:00
rtc-ps3.c
rtc: stop validating rtc_time after rtc_time_to_tm
2018-03-01 10:49:41 +01:00
rtc-puv3.c
rtc: puv3: make alarms useful
2017-08-22 12:05:21 +02:00
rtc-pxa.c
rtc: pxa: fix null pointer dereference
2022-01-27 09:04:33 +01:00
rtc-r7301.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
rtc-r9701.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-rc5t583.c
…
rtc-rk808.c
rtc: rk808: fix possible race condition
2018-03-17 14:20:42 +01:00
rtc-rp5c01.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-rs5c313.c
…
rtc-rs5c348.c
rtc: rs5c348: let the core handle invalid time
2018-03-01 10:49:40 +01:00
rtc-rs5c372.c
rtc: rs5c372: remove useless indirection
2018-03-17 14:20:45 +01:00
rtc-rtd119x.c
rtc: Add Realtek RTD1295
2017-09-05 09:55:02 +02:00
rtc-rv3029c2.c
rtc: rv3029: revert error handling patch to rv3029_eeprom_write()
2020-01-27 14:51:06 +01:00
rtc-rv8803.c
rtc: rv8803: fix the rv8803 id in the OF table
2019-11-20 18:45:25 +01:00
rtc-rx4581.c
rtc: rx4581: remove useless message
2018-03-02 10:12:24 +01:00
rtc-rx6110.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-rx8010.c
rtc: rx8010: don't modify the global rtc ops
2020-11-05 11:08:54 +01:00
rtc-rx8025.c
rtc: stop validating rtc_time in .read_time
2018-03-02 10:09:58 +01:00
rtc-rx8581.c
rtc: rx8581: switch to regmap
2018-05-17 22:43:22 +02:00
rtc-s3c.c
rtc: s3c-rtc: Avoid using broken ALMYEAR register
2019-12-13 08:51:16 +01:00
rtc-s3c.h
…
rtc-s5m.c
rtc: s5m: Add SPDX license identifier
2018-08-14 23:38:47 +02:00
rtc-s35390a.c
rtc: s35390a: Change buf's type to u8 in s35390a_init
2019-12-01 09:16:52 +01:00
rtc-sa1100.c
rtc: sa1100: fix possible race condition
2020-10-01 13:14:37 +02:00
rtc-sa1100.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
rtc-sc27xx.c
rtc: sprd: Add new RTC power down check method
2018-05-31 23:02:11 +02:00
rtc-sh.c
rtc: sh: Fix invalid alarm warning for non-enabled alarm
2019-05-08 07:21:46 +02:00
rtc-sirfsoc.c
rtc: sirfsoc: remove useless sirfsoc_rtc_ioctl
2018-03-01 10:49:27 +01:00
rtc-snvs.c
rtc: snvs: Allow a time difference on clock register read
2023-01-18 11:30:30 +01:00
rtc-spear.c
rtc: spear: stop validating rtc_time in .set_time and .set_alarm
2018-03-02 10:12:21 +01:00
rtc-st-lpc.c
rtc: st-lpc: Add missing clk_disable_unprepare in st_rtc_probe()
2023-01-18 11:30:31 +01:00
rtc-starfire.c
rtc: stop validating rtc_time after rtc_time_to_tm
2018-03-01 10:49:41 +01:00
rtc-stk17ta8.c
rtc: simplify getting .drvdata
2018-05-03 22:08:00 +02:00
rtc-stm32.c
rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path
2021-07-20 16:15:41 +02:00
rtc-stmp3xxx.c
rtc: stmp3xxx: Don't reset the rtc in .probe() when watchdog is running
2018-07-11 20:42:08 +02:00
rtc-sun4v.c
rtc: sparc: make sun4v explicitly non-modular
2016-11-04 23:31:33 +01:00
rtc-sun6i.c
rtc: sun6i: Fix memleak in sun6i_rtc_clk_init
2021-01-06 14:45:01 +01:00
rtc-sunxi.c
rtc: sunxi: fix possible race condition
2018-06-04 14:36:14 +02:00
rtc-sysfs.c
rtc: sysfs: fix NULL check in rtc_add_groups()
2019-11-20 18:45:25 +01:00
rtc-tegra.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
rtc-test.c
rtc: test: make array pdev static
2018-07-12 20:16:10 +02:00
rtc-tps6586x.c
rtc: tps6586x: let the core handle rtc range
2018-05-17 22:54:24 +02:00
rtc-tps65910.c
rtc: tps65910: Correct driver module alias
2021-09-22 11:47:57 +02:00
rtc-tps80031.c
…
rtc-twl.c
mfd: twl: Move header file out of I2C realm
2017-09-04 14:41:02 +01:00
rtc-tx4939.c
rtc: tx4939: fixup nvmem name and register size
2019-11-20 18:47:52 +01:00
rtc-v3020.c
…
rtc-vr41xx.c
rtc: vr41xx: add range
2018-05-17 22:54:21 +02:00
rtc-vt8500.c
…
rtc-wm831x.c
rtc: stop validating rtc_time after rtc_time_to_tm
2018-03-01 10:49:41 +01:00
rtc-wm8350.c
rtc: wm8350: Handle error for wm8350_register_irq
2022-04-15 14:15:00 +02:00
rtc-x1205.c
…
rtc-xgene.c
rtc: xgene: fix possible race condition
2019-05-31 06:46:26 -07:00
rtc-zynqmp.c
rtc: simplify getting .drvdata
2018-05-03 22:08:00 +02:00
systohc.c
rtc: remove a warning during scripts/kernel-doc step
2018-03-27 10:45:05 +02:00