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i2c: i801: Annotate apanel_addr as __ro_after_init

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BugLink: https://bugs.launchpad.net/bugs/2077600

[ 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>
Signed-off-by: Portia Stephens <portia.stephens@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Heiner Kallweit
2024-04-12 12:21:58 +02:00
committed by Stefan Bader
parent c9a978f72a
commit bd98ac27eb
1 changed files with 1 additions and 1 deletions
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drivers/i2c/busses/i2c-i801.c
+1 -1
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@@ -1046,7 +1046,7 @@ 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)