diff options
| author | Sergey Shtylyov <s.shtylyov@omprussia.ru> | 2021-03-30 20:44:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-22 10:38:24 +0200 |
| commit | 4aff784e937e9b519d94fe06a2ab5bd5ba4ce539 (patch) | |
| tree | d2853d02ee46aec7269eee9f1ac378e7ef43f251 /drivers/scsi | |
| parent | 1dc0a24e458d1329a869cbd036d2a7d358c41175 (diff) | |
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@omprussia.ru
Fixes: 0bb67f181834 ("[SCSI] sun3x_esp: convert to esp_scsi")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/sun3x_esp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/sun3x_esp.c b/drivers/scsi/sun3x_esp.c index d50c5ed8f428..167ae2d29e47 100644 --- a/drivers/scsi/sun3x_esp.c +++ b/drivers/scsi/sun3x_esp.c @@ -233,7 +233,9 @@ 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) |