Commit c66c4cc0 authored Aug 01, 2013 by Sebastian Hesselbarth Committed by Wolfram Sang Aug 07, 2013

i2c: add sanity check to i2c_put_adapter



i2c_put_adapter dereferences i2c_adapter pointer passed without check
for NULL. This adds a check for non-NULL pointer to allow i2c_put_adapter
called with NULL and behave the same way i2c_release_client does already.
It allows to simplify drivers where you need to release the adapter
during probe failures.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

parent 3923172b

drivers/i2c/i2c-core.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1825,6 +1825,7 @@ EXPORT_SYMBOL(i2c_get_adapter);

		void i2c_put_adapter(struct i2c_adapter *adap)
		{
		if (adap)
		module_put(adap->owner);
		}
		EXPORT_SYMBOL(i2c_put_adapter);

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