| Message ID | 20240528-pwrseq-v8-12-d354d52b763c@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | power: sequencing: implement the subsystem and add first users | expand |
On Tue, May 28, 2024 at 09:03:20PM +0200, Bartosz Golaszewski wrote: > From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> > > With the introduction of PCI device power control drivers that will be > able to trigger the port rescan when probing, we need to hold the rescan > mutex during the initial pci_host_probe() too or the two could get in > each other's way. > > Tested-by: Amit Pundir <amit.pundir@linaro.org> > Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> With s/hold the/Hold the/ in subject to match history, Acked-by: Bjorn Helgaas <bhelgaas@google.com> > --- > drivers/pci/probe.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c > index 8e696e547565..604fc96b1098 100644 > --- a/drivers/pci/probe.c > +++ b/drivers/pci/probe.c > @@ -3072,7 +3072,9 @@ int pci_host_probe(struct pci_host_bridge *bridge) > struct pci_bus *bus, *child; > int ret; > > + pci_lock_rescan_remove(); > ret = pci_scan_root_bus_bridge(bridge); > + pci_unlock_rescan_remove(); > if (ret < 0) { > dev_err(bridge->dev.parent, "Scanning root bridge failed"); > return ret; > > -- > 2.43.0 >
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 8e696e547565..604fc96b1098 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -3072,7 +3072,9 @@ int pci_host_probe(struct pci_host_bridge *bridge) struct pci_bus *bus, *child; int ret; + pci_lock_rescan_remove(); ret = pci_scan_root_bus_bridge(bridge); + pci_unlock_rescan_remove(); if (ret < 0) { dev_err(bridge->dev.parent, "Scanning root bridge failed"); return ret;