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authorJulia Lawall <julia@diku.dk>2011-04-08 14:39:23 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2011-04-08 14:39:23 +0200
commitb3b7f0550f84e06ae60df0a13c2992792fbd1af9 (patch)
tree43dd3f37e2c4180ab1a7d744fc0411569e851d64 /drivers/video/cirrusfb.c
parentcrypto: picoxcell - fix possible status FIFO overflow (diff)
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crypto: caam - introduce missing kfree
Error handling code following a kmalloc 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> Acked-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/video/cirrusfb.c')
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