mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-29 13:53:33 +00:00
mailbox: pcc: Reset pcc_chan_count to zero in case of PCC probe failure
[ Upstream commit6d7d3c2874
] 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:ce028702dd
("mailbox: pcc: Move bulk of PCCT parsing into pcc_mbox_probe") Signed-off-by: Huisong Li <lihuisong@huawei.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
1f50c7497a
commit
ba3ffb758c
1 changed files with 1 additions and 0 deletions
|
@ -743,6 +743,7 @@ static int __init pcc_init(void)
|
||||||
|
|
||||||
if (IS_ERR(pcc_pdev)) {
|
if (IS_ERR(pcc_pdev)) {
|
||||||
pr_debug("Err creating PCC platform bundle\n");
|
pr_debug("Err creating PCC platform bundle\n");
|
||||||
|
pcc_chan_count = 0;
|
||||||
return PTR_ERR(pcc_pdev);
|
return PTR_ERR(pcc_pdev);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue