This is a note to let you know that I've just added the patch titled
scsi: sun3x_esp: Add IRQ check
to the 5.10-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:
scsi-sun3x_esp-add-irq-check.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2a98341e39ae9d1c0904e66fa95e6edd7e917c3e
Author: Sergey Shtylyov <s.shtylyov@xxxxxxxxxxxx>
Date: Tue Mar 30 20:44:08 2021 +0300
scsi: sun3x_esp: Add IRQ check
[ Upstream commit 14b321380eb333c82853d7d612d0995f05f88fdc ]
The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to request_irq() (which takes
*unsigned* IRQ #), causing it to fail with -EINVAL, overriding the real
error code. Stop calling request_irq() with the invalid IRQ #s.
Link: https://lore.kernel.org/r/363eb4c8-a3bf-4dc9-2a9e-90f349030a15@xxxxxxxxxxxx
Fixes: 0bb67f181834 ("[SCSI] sun3x_esp: convert to esp_scsi")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/scsi/sun3x_esp.c b/drivers/scsi/sun3x_esp.c
index 7de82f2c9757..d3489ac7ab28 100644
--- a/drivers/scsi/sun3x_esp.c
+++ b/drivers/scsi/sun3x_esp.c
@@ -206,7 +206,9 @@ static int esp_sun3x_probe(struct platform_device *dev)
if (!esp->command_block)
goto fail_unmap_regs_dma;
- host->irq = platform_get_irq(dev, 0);
+ host->irq = err = platform_get_irq(dev, 0);
+ if (err < 0)
+ goto fail_unmap_command_block;
err = request_irq(host->irq, scsi_esp_intr, IRQF_SHARED,
"SUN3X ESP", esp);
if (err < 0)
