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linux/drivers/firmware
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Morduan Zang a2542fe353 efi/cper: Fix cper_bits_to_str buffer handling and return value 
commit d7f1b4bdc7 upstream.

The return value calculation was incorrect: `return len - buf_size;`
Initially `len = buf_size`, then `len` decreases with each operation.
This results in a negative return value on success.

Fix by returning `buf_size - len` which correctly calculates the actual
number of bytes written.

Fixes: a976d790f4 ("efi/cper: Add a new helper function to print bitmasks")
Signed-off-by: Morduan Zang <zhangdandan@uniontech.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-01-23 11:21:12 +01:00
..
arm_ffa firmware: arm_ffa: Add support for IMPDEF value in the memory access descriptor 2025-10-13 10:34:46 +01:00
arm_scmi firmware: arm_scmi: Fix premature SCMI_XFER_FLAG_IS_RAW clearing in raw mode 2025-10-15 15:28:49 +01:00
broadcom drivers: firmware: bcm47xx_sprom: fix spelling 2025-09-03 13:47:58 -07:00
cirrus firmware: cs_dsp: Remove unused struct list_head from cs_dsp_coeff_ctl 2025-06-16 13:26:44 +01:00
efi efi/cper: Fix cper_bits_to_str buffer handling and return value 2026-01-23 11:21:12 +01:00
google sysfs: treewide: switch back to attribute_group::bin_attrs 2025-06-17 10:44:15 +02:00
imx firmware: imx: scu-irq: Set mu_resource_id before get handle 2026-01-23 11:21:12 +01:00
meson firmware: firmware: meson-sm: fix compile-test default 2025-09-10 09:31:20 +02:00
microchip firmware: microchip: fix UL_IAP lock check in mpfs_auto_update_state() 2024-12-05 15:08:51 +00:00
psci arm64 updates for 6.16 2025-05-28 14:55:35 -07:00
qcom Merge branch '20250911-qcom-tee-using-tee-ss-without-mem-obj-v12-2-17f07a942b8d@oss.qualcomm.com' into drivers-for-6.18 2025-09-15 08:43:03 -05:00
samsung firmware: exynos-acpm: fix PMIC returned errno 2025-09-11 11:27:05 +02:00
smccc firmware: smccc: Support both smc and hvc conduits for getting hyp UUID 2025-06-11 13:55:41 +01:00
tegra firmware: tegra: Do not warn on missing memory-region property 2025-09-15 18:28:09 +02:00
xilinx firmware: xilinx: Use of_genpd_sync_state() 2025-07-09 13:29:34 +02:00
arm_scpi.c Char/Misc/IIO/Whatever driver subsystem updates for 6.13-rc1 2024-11-29 11:58:27 -08:00
arm_sdei.c firmware: SDEI: Allow sdei initialization without ACPI_APEI_GHES 2025-05-08 13:35:22 +01:00
dmi-id.c firmware: dmi-id: add a release callback function 2024-04-08 09:34:24 +02:00
dmi-sysfs.c firmware: dmi: Constify 'struct bin_attribute' 2025-02-21 09:20:30 +01:00
dmi_scan.c firmware: dmi: Mark bin_attributes as __ro_after_init 2025-02-21 09:20:30 +01:00
edd.c edd: make kobj_type structure constant 2023-03-09 18:07:33 +01:00
iscsi_ibft.c iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic() 2025-01-29 14:58:31 -05:00
iscsi_ibft_find.c iscsi_ibft: Fix finding the iBFT under Xen Dom 0 2023-06-26 07:47:11 +02:00
Kconfig soc: drivers for 6.16 2025-05-31 07:53:30 -07:00
Makefile soc: driver updates for 6.15, part 1 2025-03-27 09:05:55 -07:00
memmap.c firmware: memmap: Constify memmap_ktype 2024-10-13 17:22:33 +02:00
mtk-adsp-ipc.c firmware: Switch back to struct platform_driver::remove() 2024-11-12 12:55:56 +01:00
qemu_fw_cfg.c sysfs: treewide: switch back to bin_attribute::read()/write() 2025-06-17 10:44:13 +02:00
raspberrypi.c firmware: Switch back to struct platform_driver::remove() 2024-11-12 12:55:56 +01:00
stratix10-rsu.c firmware: Switch back to struct platform_driver::remove() 2024-11-12 12:55:56 +01:00
stratix10-svc.c firmware: stratix10-svc: Add mutex in stratix10 memory management 2026-01-08 10:17:02 +01:00
sysfb.c sysfb: Fix screen_info type check for VGA 2025-06-05 17:54:31 +02:00
sysfb_simplefb.c firmware: sysfb: Move bpp-depth calculation into screen_info helper 2025-04-07 11:02:07 +02:00
thead,th1520-aon.c firmware: thead,th1520-aon: Fix use after free in th1520_aon_init() 2025-03-18 13:09:00 +01:00
ti_sci.c firmware: ti_sci: Set IO Isolation only if the firmware is capable 2025-12-18 14:02:49 +01:00
ti_sci.h firmware: ti_sci: Set IO Isolation only if the firmware is capable 2025-12-18 14:02:49 +01:00
trusted_foundations.c firmware: tf: Different way of L2 cache enabling after LP2 suspend 2020-05-06 18:27:26 +02:00
turris-mox-rwtm.c firmware: turris-mox-rwtm: Add support for ECDSA signatures with HW private key 2025-03-20 17:56:57 +01:00