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i2c: i801: Annotate apanel_addr as __ro_after_init

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[ Upstream commit 355b1513b1e97b6cef84b786c6480325dfd3753d ]

Annotate this variable as __ro_after_init to protect it from being
overwritten later.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Heiner Kallweit 2024-04-12 12:21:58 +02:00 committed by Greg Kroah-Hartman
parent e1ba226187
commit 158bcaa2e3
1 changed files with 1 additions and 1 deletions
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drivers/i2c/busses/i2c-i801.c
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@ -1078,7 +1078,7 @@ static const struct pci_device_id i801_ids[] = {
MODULE_DEVICE_TABLE(pci, i801_ids);
#if defined CONFIG_X86 && defined CONFIG_DMI
static unsigned char apanel_addr;
static unsigned char apanel_addr __ro_after_init;
/* Scan the system ROM for the signature "FJKEYINF" */
static __init const void __iomem *bios_signature(const void __iomem *bios)