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| author | Huisong Li <[email protected]> | 2022-11-12 02:05:28 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2022-11-23 18:06:56 +0000 |
| commit | 6d7d3c287410c0ad499e478e2338dc3d7e3392b1 (patch) | |
| tree | 3d6a4de29b2b6fde6fa424af09f5f24d2d73605d /lib/fault-inject.c | |
| parent | ACPI: PCC: Setup PCC Opregion handler only if platform interrupt is available (diff) | |
| download | kernel-6d7d3c287410c0ad499e478e2338dc3d7e3392b1.tar.gz kernel-6d7d3c287410c0ad499e478e2338dc3d7e3392b1.zip | |
mailbox: pcc: Reset pcc_chan_count to zero in case of PCC probe failure
Currently, 'pcc_chan_count' is remains set to a non-zero value if PCC
subspaces are parsed successfully but something else fail later during
the initial PCC probing phase. This will result in pcc_mbox_request_channel
trying to access the resources that are not initialised or allocated and
may end up in a system crash.
Reset pcc_chan_count to 0 when the PCC probe fails in order to prevent
the possible issue as described above.
Fixes: ce028702ddbc ("mailbox: pcc: Move bulk of PCCT parsing into pcc_mbox_probe")
Signed-off-by: Huisong Li <[email protected]>
Reviewed-by: Sudeep Holla <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'lib/fault-inject.c')
0 files changed, 0 insertions, 0 deletions