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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> |
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.. | ||
amcc | ||
caam | ||
geode-aes.c | ||
geode-aes.h | ||
hifn_795x.c | ||
ixp4xx_crypto.c | ||
Kconfig | ||
Makefile | ||
mv_cesa.c | ||
mv_cesa.h | ||
n2_asm.S | ||
n2_core.c | ||
n2_core.h | ||
omap-aes.c | ||
omap-sham.c | ||
padlock-aes.c | ||
padlock-sha.c | ||
picoxcell_crypto_regs.h | ||
picoxcell_crypto.c | ||
talitos.c | ||
talitos.h |