This is a note to let you know that I've just added the patch titled
PCI: switchtec: Fix an error handling path in switchtec_pci_probe()
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pci-switchtec-fix-an-error-handling-path-in-switchte.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1d1a297812ba931e8199401ea42f55c571ccf93f
Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Date: Sun Dec 24 15:30:01 2023 +0100
PCI: switchtec: Fix an error handling path in switchtec_pci_probe()
[ Upstream commit dec529b0b0572b32f9eb91c882dd1f08ca657efb ]
The commit in Fixes changed the logic on how resources are released and
introduced a new switchtec_exit_pci() that need to be called explicitly in
order to undo a corresponding switchtec_init_pci().
This was done in the remove function, but not in the probe.
Fix the probe now.
Fixes: df25461119d9 ("PCI: switchtec: Fix stdev_release() crash after surprise hot remove")
Link: https://lore.kernel.org/r/01446d2ccb91a578239915812f2b7dfbeb2882af.1703428183.git.christophe.jaillet@xxxxxxxxxx
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 1804794d0e686..5a4adf6c04cf8 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -1672,7 +1672,7 @@ static int switchtec_pci_probe(struct pci_dev *pdev,
rc = switchtec_init_isr(stdev);
if (rc) {
dev_err(&stdev->dev, "failed to init isr.\n");
- goto err_put;
+ goto err_exit_pci;
}
iowrite32(SWITCHTEC_EVENT_CLEAR |
@@ -1693,6 +1693,8 @@ static int switchtec_pci_probe(struct pci_dev *pdev,
err_devadd:
stdev_kill(stdev);
+err_exit_pci:
+ switchtec_exit_pci(stdev);
err_put:
ida_free(&switchtec_minor_ida, MINOR(stdev->dev.devt));
put_device(&stdev->dev);
