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driver core: Check if r->name is valid in platform_get_resource_byname()

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Safety check for the validity of the resource name before calling strcmp().
If the resource name is NULL do not compare it, just skip it.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Ujfalusi 2012-08-23 17:10:00 +03:00 committed by Greg Kroah-Hartman
parent 45f035ab9b
commit 1b8cb92906
1 changed files with 3 additions and 0 deletions
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3
drivers/base/platform.c
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@ -103,6 +103,9 @@ struct resource *platform_get_resource_byname(struct platform_device *dev,
for (i = 0; i < dev->num_resources; i++) {
struct resource *r = &dev->resource[i];
if (unlikely(!r->name))
continue;
if (type == resource_type(r) && !strcmp(r->name, name))
return r;
}