Irq_of_parse_and_map will return zero in case of error, so add a error check for that. Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx> Cc: Chris Healy <cphealy@xxxxxxxxx> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx> Cc: Horia Geantă <horia.geanta@xxxxxxx> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Cc: Iuliana Prodan <iuliana.prodan@xxxxxxx> Cc: linux-crypto@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx --- drivers/crypto/caam/jr.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c index 7947d61a25cf..2732f3a0725a 100644 --- a/drivers/crypto/caam/jr.c +++ b/drivers/crypto/caam/jr.c @@ -537,6 +537,10 @@ static int caam_jr_probe(struct platform_device *pdev) /* Identify the interrupt */ jrpriv->irq = irq_of_parse_and_map(nprop, 0); + if (!jrpriv->irq) { + dev_err(jrdev, "irq_of_parse_and_map failed\n"); + return -EINVAL; + } /* Now do the platform independent part */ error = caam_jr_init(jrdev); /* now turn on hardware */ -- 2.21.0