| Message ID | 594aa9ae-2215-49f6-f73c-33bd38989912@omprussia.ru |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Stop calling request_irq() with invalid IRQs | expand |
Index: scsi/drivers/scsi/jazz_esp.c =================================================================== --- scsi.orig/drivers/scsi/jazz_esp.c +++ scsi/drivers/scsi/jazz_esp.c @@ -143,7 +143,9 @@ static int esp_jazz_probe(struct platfor 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;
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. Fixes: 352e921f0dd4 ("[SCSI] jazz_esp: converted to use esp_core") Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru> --- Changes in version 2: - clarified the description. drivers/scsi/jazz_esp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)