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authorLubomir Rintel <[email protected]>2024-12-31 19:03:35 +0000
committerStephen Boyd <[email protected]>2025-01-08 19:13:48 +0000
commite24b15d4704dcb73920c3d18a6157abd18df08c1 (patch)
treea8bce5136c198adf302d0a013aa15e3b36e3fa11 /net/unix/sysctl_net_unix.c
parentclk: clk-imx8mp-audiomix: fix function signature (diff)
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clk: mmp2: call pm_genpd_init() only after genpd.name is set
Setting the genpd's struct device's name with dev_set_name() is happening within pm_genpd_init(). If it remains NULL, things can blow up later, such as when crafting the devfs hierarchy for the power domain: Unable to handle kernel NULL pointer dereference at virtual address 00000000 when read ... Call trace: strlen from start_creating+0x90/0x138 start_creating from debugfs_create_dir+0x20/0x178 debugfs_create_dir from genpd_debug_add.part.0+0x4c/0x144 genpd_debug_add.part.0 from genpd_debug_init+0x74/0x90 genpd_debug_init from do_one_initcall+0x5c/0x244 do_one_initcall from kernel_init_freeable+0x19c/0x1f4 kernel_init_freeable from kernel_init+0x1c/0x12c kernel_init from ret_from_fork+0x14/0x28 Bisecting tracks this crash back to commit 899f44531fe6 ("pmdomain: core: Add GENPD_FLAG_DEV_NAME_FW flag"), which exchanges use of genpd->name with dev_name(&genpd->dev) in genpd_debug_add.part(). Fixes: 899f44531fe6 ("pmdomain: core: Add GENPD_FLAG_DEV_NAME_FW flag") Signed-off-by: Lubomir Rintel <[email protected]> Cc: [email protected] # v6.12+ Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Stephen Boyd <[email protected]>
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
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