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Haotian Zhang 5998ad91f8 rtc: gamecube: Check the return value of ioremap() 
[ Upstream commit d1220e47e4 ]

The function ioremap() in gamecube_rtc_read_offset_from_sram() can fail
and return NULL, which is dereferenced without checking, leading to a
NULL pointer dereference.

Add a check for the return value of ioremap() and return -ENOMEM on
failure.

Fixes: 86559400b3 ("rtc: gamecube: Add a RTC driver for the GameCube, Wii and Wii U")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: Link Mauve <kernel@linkmauve.fr>
Link: https://patch.msgid.link/20251126080625.1752-1-vulab@iscas.ac.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-12-18 13:55:20 +01:00
..
class.c
rtc: Fix offset calculation for .start_secs < 0
2025-06-10 07:12:59 -04:00
dev.c
[tree-wide] finally take no_llseek out
2024-09-27 08:18:43 -07:00
interface.c
rtc: interface: Fix long-standing race when setting alarm
2025-10-19 16:33:54 +02:00
Kconfig
Merge tag 'rtc-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2024-09-25 14:38:37 -07:00
lib_test.c
rtc: add missing MODULE_DESCRIPTION() macro
2024-06-28 00:24:43 +02:00
lib.c
rtc: Make rtc_time64_to_tm() support dates before 1970
2025-06-10 07:12:58 -04:00
Makefile
Merge tag 'rtc-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2024-09-25 14:38:37 -07:00
nvmem.c
nvmem: add explicit config option to read old syntax fixed OF cells
2023-10-21 19:19:06 +02:00
proc.c
…
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-ab8500.c
rtc: ab8500: Convert to platform remove callback returning void
2023-03-17 23:03:16 +01:00
rtc-ab-b5ze-s3.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-ab-eoz9.c
rtc: ab-eoz9: don't fail temperature reads on undervoltage notification
2024-12-05 14:03:07 +01:00
rtc-abx80x.c
rtc: abx80x: Fix WDT bit position of the status register
2024-12-05 14:03:03 +01:00
rtc-ac100.c
rtc: ac100: remove misuses of kernel-doc
2024-01-15 22:27:35 +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: at91rm9200: annotate at91_rtc_remove with __exit again
2023-10-16 06:33:00 +02:00
rtc-at91sam9.c
rtc: at91sam9: fix OF node leak in probe() error path
2024-09-12 00:33:33 +02:00
rtc-au1xxx.c
…
rtc-bd70528.c
…
rtc-bq32k.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-bq4802.c
…
rtc-brcmstb-waketimer.c
rtc: brcmstb-waketimer: support level alarm_irq
2023-10-02 00:13:57 +02:00
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: use spin_lock_irqsave in cmos_interrupt
2025-07-10 16:04:41 +02:00
rtc-core.h
…
rtc-cpcap.c
…
rtc-cros-ec.c
rtc: cros-ec: provide ID table for avoiding fallback match
2024-03-29 15:46:08 +01:00
rtc-da9052.c
…
rtc-da9055.c
…
rtc-da9063.c
rtc: da9063: Use dev_err_probe()
2024-01-18 01:00:21 +01:00
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: remove clear of oscillator stop flag (OSF) in probe
2025-08-20 18:30:50 +02:00
rtc-ds1343.c
…
rtc-ds1347.c
rtc: ds1347: fix value written to century register
2022-11-15 21:01:51 +01:00
rtc-ds1374.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +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: ds1511: set alarm offset limit
2024-02-29 22:16:52 +01:00
rtc-ds1553.c
…
rtc-ds1672.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +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: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-efi.c
rtc: efi: fixed typo in efi_procfs()
2023-10-15 23:01:08 +02:00
rtc-em3027.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-ep93xx.c
rtc: ep93xx: add DT support for Cirrus EP93xx
2023-10-15 23:17:05 +02:00
rtc-fm3130.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +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: Check the return value of ioremap()
2025-12-18 13:55:20 +01:00
rtc-generic.c
…
rtc-goldfish.c
rtc: add missing MODULE_DESCRIPTION() macro
2024-06-28 00:24:43 +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: hym8563: fix incorrect maximum clock rate handling
2025-08-15 12:13:59 +02:00
rtc-imx-sc.c
…
rtc-imx-sm-bbm.c
rtc: support i.MX95 BBM RTC
2024-08-28 21:54:51 +01:00
rtc-imxdi.c
rtc: imxdi: Convert to platform remove callback returning void
2023-10-13 12:29:08 +02:00
rtc-isl1208.c
rtc: isl1208: Update correct procedure for clearing alarm
2024-06-28 00:34:21 +02:00
rtc-isl12022.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +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: loongson: Add missing alarm notifications for ACPI RTC events
2025-06-19 15:32:10 +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
[tree-wide] finally take no_llseek out
2024-09-27 08:18:43 -07:00
rtc-m41t93.c
…
rtc-m41t94.c
…
rtc-m48t35.c
…
rtc-m48t59.c
rtc: m48t59: set range
2024-09-22 01:17:10 +02:00
rtc-m48t86.c
rtc: m48t86: add DT support for m48t86
2023-08-28 00:01:51 +02:00
rtc-ma35d1.c
rtc: ma35d1: remove hardcoded UIE support
2024-01-08 01:33:27 +01:00
rtc-max6900.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +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-max31335.c
move asm/unaligned.h to linux/unaligned.h
2024-10-02 17:23:23 -04:00
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
2023-12-17 22:33:55 +01:00
rtc-mcp795.c
rtc: mcp795: drop unneeded MODULE_ALIAS
2024-04-17 01:39:35 +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-moxart.c
rtc: moxart: switch to using gpiod API
2023-02-09 23:31:46 +01:00
rtc-mpc5121.c
rtc: add missing MODULE_DESCRIPTION() macro
2024-06-28 00:24:43 +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: mv: Convert to platform remove callback returning void
2023-10-13 12:29:08 +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-mxc.c
rtc: Explicitly include correct DT includes
2023-07-27 23:31:29 +02:00
rtc-nct3018y.c
rtc: nct3018y: fix incorrect maximum clock rate handling
2025-08-15 12:14:00 +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: add missing MODULE_DESCRIPTION() macro
2024-06-28 00:24:43 +02:00
rtc-opal.c
…
rtc-optee.c
rtc: optee: fix memory leak on driver removal
2025-10-19 16:33:36 +02:00
rtc-palmas.c
rtc: palmas: Convert to platform remove callback returning void
2023-03-17 23:03:17 +01:00
rtc-pcap.c
rtc: pcap: Drop no-op remove function
2023-10-13 12:29:08 +02:00
rtc-pcf2123.c
rtc: pcf2123: use IRQ flags obtained from fwnode
2023-02-01 09:13:35 +01:00
rtc-pcf2127.c
rtc: pcf2127: fix watchdog interrupt mask on pcf2131
2025-11-13 15:34:35 -05:00
rtc-pcf8523.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-pcf8563.c
rtc: pcf8563: fix incorrect maximum clock rate handling
2025-08-15 12:14:00 +02:00
rtc-pcf8583.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +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: pcf85063: fix incorrect maximum clock rate handling
2025-08-15 12:14:00 +02:00
rtc-pcf85363.c
rtc: pcf85363: fix wrong mask/val parameters in regmap_update_bits call
2023-10-15 22:37:57 +02:00
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-pm8xxx.c
move asm/unaligned.h to linux/unaligned.h
2024-10-02 17:23:23 -04:00
rtc-ps3.c
…
rtc-pxa.c
rtc: pxa: Convert to platform remove callback returning void
2023-10-13 12:29:08 +02:00
rtc-r7301.c
rtc: rtc7301: Support byte-addressed IO
2023-10-15 22:37:25 +02:00
rtc-r9701.c
…
rtc-rc5t583.c
rtc: add missing MODULE_DESCRIPTION() macro
2024-06-28 00:24:43 +02:00
rtc-rc5t619.c
rtc: rc5t619: use proper module tables
2024-09-22 01:17:35 +02:00
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: rv3028: fix incorrect maximum clock rate handling
2025-08-15 12:14:00 +02:00
rtc-rv3029c2.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-rv3032.c
rtc: rv3032: fix EERD location
2025-05-29 11:02:16 +02:00
rtc-rv8803.c
rtc: rv8803: add wakeup-source support
2024-01-15 22:29:48 +01:00
rtc-rx4581.c
…
rtc-rx6110.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-rx8010.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-rx8025.c
rtc: rx8025: fix incorrect register reference
2025-11-13 15:34:40 -05:00
rtc-rx8111.c
rtc: rx8111: handle VLOW flag
2024-05-07 23:40:10 +02:00
rtc-rx8581.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-rzn1.c
rtc: rzn1: fix BCD to rtc_time conversion errors
2024-12-05 14:03:05 +01:00
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: s35390a: Drop vendorless compatible string from match table
2024-09-12 00:15:49 +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-sd2405al.c
rtc: Add driver for SD2405AL
2024-09-12 00:33:24 +02:00
rtc-sd3078.c
rtc: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-07-07 00:40:29 +02:00
rtc-sh.c
rtc: sh: assign correct interrupts with DT
2025-06-19 15:32:09 +02:00
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-ssd202d.c
rtc: Add support for the SSD202D RTC
2023-10-16 16:54:15 +02:00
rtc-st-lpc.c
rtc: st-lpc: Use IRQF_NO_AUTOEN flag in request_irq()
2024-12-05 14:03:03 +01:00
rtc-starfire.c
…
rtc-stk17ta8.c
…
rtc-stm32.c
rtc: stm32: add alarm A out feature
2024-08-14 11:37:07 +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: disable automatic clock input switching
2024-09-12 00:33:33 +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-tps6594.c
rtc: tps6594: Fix integer overflow on 32bit systems
2025-02-08 09:58:01 +01:00
rtc-tps65910.c
rtc: add missing MODULE_DESCRIPTION() macro
2024-06-28 00:24:43 +02:00
rtc-twl.c
rtc: twl: convert comma to semicolon
2024-09-12 00:08:09 +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: x1205: Fix Xicor X1205 vendor prefix
2025-10-19 16:33:36 +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: Fix optional clock name property
2025-02-17 10:05:44 +01:00
sysfs.c
rtc: Include <linux/kstrtox.h> when appropriate
2022-11-15 21:01:51 +01:00