The calls to dev_dbg will not work properly when spi is NULL. Just use pr_debug instead. Problem found using scripts/coccinelle/null/deref_null.cocci Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx> --- drivers/media/pci/netup_unidvb/netup_unidvb_spi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c b/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c index f55b327..026895f 100644 --- a/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c +++ b/drivers/media/pci/netup_unidvb/netup_unidvb_spi.c @@ -81,8 +81,7 @@ irqreturn_t netup_spi_interrupt(struct netup_spi *spi) unsigned long flags; if (!spi) { - dev_dbg(&spi->master->dev, - "%s(): SPI not initialized\n", __func__); + pr_debug("%s(): SPI not initialized\n", __func__); return IRQ_NONE; } spin_lock_irqsave(&spi->lock, flags); @@ -235,8 +234,7 @@ void netup_spi_release(struct netup_unidvb_dev *ndev) struct netup_spi *spi = ndev->spi; if (!spi) { - dev_dbg(&spi->master->dev, - "%s(): SPI not initialized\n", __func__); + pr_debug("%s(): SPI not initialized\n", __func__); return; } spin_lock_irqsave(&spi->lock, flags); -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html