This is a note to let you know that I've just added the patch titled
spi: dw-pci: free previously allocated IRQs if desc->setup() fails
to the 5.9-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:
spi-dw-pci-free-previously-allocated-irqs-if-desc-se.patch
and it can be found in the queue-5.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4a4b576372ed991075d912fae06da888776ea267
Author: Jay Fang <f.fangjian@xxxxxxxxxx>
Date: Tue Sep 15 09:22:49 2020 +0800
spi: dw-pci: free previously allocated IRQs if desc->setup() fails
[ Upstream commit 9599f341889c87e56bb944659c32490d05e2532f ]
Free previously allocated IRQs when return an error code of desc->setup()
which is not always successful. And simplify the code by adding a goto
label.
Fixes: 8f5c285f3ef5 ("SPI: designware: pci: Switch over to MSI interrupts")
CC: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
Signed-off-by: Jay Fang <f.fangjian@xxxxxxxxxx>
Link: https://lore.kernel.org/r/1600132969-53037-1-git-send-email-f.fangjian@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c
index 2ea73809ca345..271839a8add0e 100644
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -127,18 +127,16 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (desc->setup) {
ret = desc->setup(dws);
if (ret)
- return ret;
+ goto err_free_irq_vectors;
}
} else {
- pci_free_irq_vectors(pdev);
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_free_irq_vectors;
}
ret = dw_spi_add_host(&pdev->dev, dws);
- if (ret) {
- pci_free_irq_vectors(pdev);
- return ret;
- }
+ if (ret)
+ goto err_free_irq_vectors;
/* PCI hook and SPI hook use the same drv data */
pci_set_drvdata(pdev, dws);
@@ -152,6 +150,10 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pm_runtime_allow(&pdev->dev);
return 0;
+
+err_free_irq_vectors:
+ pci_free_irq_vectors(pdev);
+ return ret;
}
static void spi_pci_remove(struct pci_dev *pdev)
