diff options
| author | Sergey Shtylyov <s.shtylyov@omprussia.ru> | 2021-03-30 20:44:08 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-04-13 00:20:48 -0400 |
| commit | 14b321380eb333c82853d7d612d0995f05f88fdc (patch) | |
| tree | 0234a0a5beb7acc0be9713b09e61d492f6d0528d /drivers | |
| parent | 38fca15c29db6ed06e894ac194502633e2a7d1fb (diff) | |
| download | linux-14b321380eb333c82853d7d612d0995f05f88fdc.tar.bz2 | |
scsi: sun3x_esp: Add IRQ check
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>
Diffstat (limited to 'drivers')
| -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 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) |