From mboxrd@z Thu Jan 1 00:00:00 1970 From: thierry.reding@gmail.com (Thierry Reding) Date: Mon, 19 May 2014 14:57:39 +0200 Subject: [RFC PATCH] of/irq: do irq resolution in platform_get_irq_byname() In-Reply-To: <1400506259-18397-1-git-send-email-grygorii.strashko@ti.com> References: <1400506259-18397-1-git-send-email-grygorii.strashko@ti.com> Message-ID: <20140519125738.GB9466@ulmo> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, May 19, 2014 at 04:30:59PM +0300, Grygorii Strashko wrote: [...] > diff --git a/drivers/of/irq.c b/drivers/of/irq.c [...] > /** > + * of_irq_get_byname - Decode a node's IRQ and return it as a Linux irq number > + * @dev: pointer to device tree node > + * @name: zero-based index of the irq This is a name, not an index. > + * > + * Returns Linux irq number on success, or -EPROBE_DEFER if the irq domain > + * is not yet created, or errorno in case of failure. s/errorno/error code/? Also EPROBE_DEFER is also an error code, so I'm not sure if it's worth a special case in the description here. > + * > + */ > +int of_irq_get_byname(struct device_node *dev, const char *name) > +{ > + const char *name_irq = NULL; > + int index = 0; > + > + if (unlikely(!name)) > + return -EINVAL; > + > + while (!of_property_read_string_index(dev, "interrupt-names", > + index, &name_irq)) > + if (!strcmp(name, name_irq)) > + return of_irq_get(dev, index); Isn't this missing an index++ somewhere? Otherwise it seems like this would loop infinitely if there was no match on the first entry. Thierry -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 836 bytes Desc: not available URL: