[PATCH 7/9] menu: fix memory corruption
u.kleine-koenig at pengutronix.de
Mon Aug 23 08:44:19 EDT 2010
On Mon, Aug 23, 2010 at 01:40:15PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 08:24 Mon 23 Aug , Sascha Hauer wrote:
> > menu_free and menu_entry_free are called on not fully initialized
> > entries, so we have to check for validity before freeing the
> > members.
> I disagree free is suposed to not fail evenif we pass a NULL pointer
Ack. (ie. free must accept NULL without barfing.)
free(3) has this feature:
"free() frees the memory space pointed to by ptr [...]. If ptr
is NULL, no operation is performed."
and kfree in the kernel accepts NULL, too.
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