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Date: Tue, 13 Mar 2012 19:40:05 +0800 From: Dong Aisheng <b29396@...escale.com> To: <devicetree-discuss@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org> CC: <grant.likely@...retlab.ca>, <rob.herring@...xeda.com> Subject: [PATCH 1/1] of: add NULL parameter check for of_device_is_available From: Dong Aisheng <dong.aisheng@...aro.org> This function will return 1 even the device node passed in is NULL which is a little error-prone. Change to return 0 if the device node passed in is NULL. Signed-off-by: Dong Aisheng <dong.aisheng@...aro.org> --- drivers/of/base.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/of/base.c b/drivers/of/base.c index 133908a..b9347d8 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -280,6 +280,9 @@ int of_device_is_available(const struct device_node *device) const char *status; int statlen; + if (device == NULL) + return 0; + status = of_get_property(device, "status", &statlen); if (status == NULL) return 1; -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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