The function can return negative value. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107 Signed-off-by: Andrzej Hajda <[email protected]> --- Hi, To avoid problems with too many mail recipients I have sent whole patchset only to LKML. Anyway patches have no dependencies. Regards Andrzej --- drivers/ata/pata_samsung_cf.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/ata/pata_samsung_cf.c b/drivers/ata/pata_samsung_cf.c index cbb5a47..e028763 100644 --- a/drivers/ata/pata_samsung_cf.c +++ b/drivers/ata/pata_samsung_cf.c @@ -510,8 +510,6 @@ static int __init pata_s3c_probe(struct platform_device *pdev) return -ENOMEM; } - info->irq = platform_get_irq(pdev, 0); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); info->ide_addr = devm_ioremap_resource(dev, res); @@ -551,9 +549,10 @@ static int __init pata_s3c_probe(struct platform_device *pdev) info->cpu_type = cpu_type; + ret = platform_get_irq(pdev, 0); + info->irq = ret > 0 ? ret : 0; if (info->irq <= 0) { ap->flags |= ATA_FLAG_PIO_POLLING; - info->irq = 0; ata_port_desc(ap, "no IRQ, using PIO polling\n"); } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
