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authorJulia Lawall <julia@diku.dk>2008-11-14 13:05:31 -0500
committerIngo Molnar <mingo@elte.hu>2008-11-18 10:59:58 -0500
commit0bb943c7a2136716757a263f604d26309fd98042 (patch)
tree80af655ff3272a820a9090e6fa08c9e6472f0bed /drivers/acpi
parente270219f4372b58bd3eeac12bd9f7edc592b8f6b (diff)
tracing: kernel/trace/trace.c: introduce missing kfree()
Impact: fix memory leak 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,l; position p1,p2; expression *ptr != NULL; @@ ( if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S | x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S ) <... when != x when != if (...) { <+...x...+> } x->f = E ...> ( 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: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/acpi')
0 files changed, 0 insertions, 0 deletions