diff options
| author | Sudeep Holla <[email protected]> | 2025-10-17 11:03:20 +0000 |
|---|---|---|
| committer | Ulf Hansson <[email protected]> | 2025-10-22 14:16:14 +0000 |
| commit | 7458f72cc28f9eb0de811effcb5376d0ec19094a (patch) | |
| tree | d2c7d336d72a5042fbfae45bd2824d1d901cc675 /net/unix/af_unix.c | |
| parent | pmdomain: samsung: plug potential memleak during probe (diff) | |
| download | kernel-7458f72cc28f9eb0de811effcb5376d0ec19094a.tar.gz kernel-7458f72cc28f9eb0de811effcb5376d0ec19094a.zip | |
pmdomain: arm: scmi: Fix genpd leak on provider registration failure
If of_genpd_add_provider_onecell() fails during probe, the previously
created generic power domains are not removed, leading to a memory leak
and potential kernel crash later in genpd_debug_add().
Add proper error handling to unwind the initialized domains before
returning from probe to ensure all resources are correctly released on
failure.
Example crash trace observed without this fix:
| Unable to handle kernel paging request at virtual address fffffffffffffc70
| CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.18.0-rc1 #405 PREEMPT
| Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno Development Platform
| pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
| pc : genpd_debug_add+0x2c/0x160
| lr : genpd_debug_init+0x74/0x98
| Call trace:
| genpd_debug_add+0x2c/0x160 (P)
| genpd_debug_init+0x74/0x98
| do_one_initcall+0xd0/0x2d8
| do_initcall_level+0xa0/0x140
| do_initcalls+0x60/0xa8
| do_basic_setup+0x28/0x40
| kernel_init_freeable+0xe8/0x170
| kernel_init+0x2c/0x140
| ret_from_fork+0x10/0x20
Fixes: 898216c97ed2 ("firmware: arm_scmi: add device power domain support using genpd")
Signed-off-by: Sudeep Holla <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
Cc: [email protected]
Signed-off-by: Ulf Hansson <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions