rmu needs to be freed before leaving the function in an error case. A simplified version of the semantic match that finds the problem is as follows: (http://coccinelle.lip6.fr) // <smpl> @r exists@ local idexpression x; statement S; identifier f1; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } 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@xxxxxxx> --- arch/powerpc/sysdev/fsl_rmu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/sysdev/fsl_rmu.c b/arch/powerpc/sysdev/fsl_rmu.c index 02445a5..1548578 100644 --- a/arch/powerpc/sysdev/fsl_rmu.c +++ b/arch/powerpc/sysdev/fsl_rmu.c @@ -1081,6 +1081,7 @@ int fsl_rio_setup_rmu(struct rio_mport *mport, struct device_node *node) if (!msg_addr) { pr_err("%s: unable to find 'reg' property of message-unit\n", node->full_name); + kfree(rmu); return -ENOMEM; } msg_start = of_read_number(msg_addr, aw); -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
