github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 18:13:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

slimbus: core: fix runtime PM imbalance on report present

Browse Source 
Make sure to balance the runtime PM usage count in case slimbus device
or address allocation fails on report present, which would otherwise
prevent the controller from suspending.

Fixes: 4b14e62ad3 ("slimbus: Add support for 'clock-pause' feature")
Cc: stable@vger.kernel.org	# 4.16
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20251126145329.5022-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2025-11-26 15:53:25 +01:00 committed by Greg Kroah-Hartman
parent 0b52edaeb5
commit 0eb4ff6596
1 changed files with 9 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/slimbus/core.c
View File

@ -489,21 +489,23 @@ int slim_device_report_present(struct slim_controller *ctrl,
if (ctrl->sched.clk_state != SLIM_CLK_ACTIVE) {
dev_err(ctrl->dev, "slim ctrl not active,state:%d, ret:%d\n",
ctrl->sched.clk_state, ret);
goto slimbus_not_active;
goto out_put_rpm;
}
sbdev = slim_get_device(ctrl, e_addr);
if (IS_ERR(sbdev))
return -ENODEV;
if (IS_ERR(sbdev)) {
ret = -ENODEV;
goto out_put_rpm;
}
if (sbdev->is_laddr_valid) {
*laddr = sbdev->laddr;
return 0;
ret = 0;
} else {
ret = slim_device_alloc_laddr(sbdev, true);
}
ret = slim_device_alloc_laddr(sbdev, true);
slimbus_not_active:
out_put_rpm:
pm_runtime_mark_last_busy(ctrl->dev);
pm_runtime_put_autosuspend(ctrl->dev);
return ret;