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authorJulia Lawall <julia@diku.dk>2009-09-11 06:22:09 +0000
committerDavid S. Miller <davem@davemloft.net>2009-09-11 12:54:34 -0700
commita4b11649618ef5366ee553f4083449d6bee5d8ec (patch)
tree50d7ffad6a9d1ab544e8ef6b7d9e0ec93ba6bb17 /drivers/sn
parent966a5d1b85c45f1b55abbc1b595e0b5ca14b87db (diff)
drivers/net/phy: introduce missing kfree
Error handling code following a kzalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/sn')
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