diff options
| author | Sergey Shtylyov <s.shtylyov@omprussia.ru> | 2021-03-30 20:43:23 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-04-13 00:20:48 -0400 |
| commit | 38fca15c29db6ed06e894ac194502633e2a7d1fb (patch) | |
| tree | bdf2d6a8d0b1b580e1b630fc83de0e90d299da7d | |
| parent | 6c11dc060427e07ca144eacaccd696106b361b06 (diff) | |
scsi: jazz_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/594aa9ae-2215-49f6-f73c-33bd38989912@omprussia.ru
Fixes: 352e921f0dd4 ("[SCSI] jazz_esp: converted to use esp_core")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/jazz_esp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/jazz_esp.c b/drivers/scsi/jazz_esp.c index f0ed6863cc70..60a88a95a8e2 100644 --- a/drivers/scsi/jazz_esp.c +++ b/drivers/scsi/jazz_esp.c @@ -143,7 +143,9 @@ static int esp_jazz_probe(struct platform_device *dev) if (!esp->command_block) goto fail_unmap_regs; - 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, "ESP", esp); if (err < 0) goto fail_unmap_command_block; |