linux/arch/mips/txx9
Julia Lawall 70ebadc8e3 MIPS: TXx9: Fix error handling.
Error handling code following a kzalloc should free the allocated data.
Error handling code following an ioremap should iounmap the allocated data.

The semantic match that finds the first 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: Ralf Baechle <ralf@linux-mips.org>
2009-09-17 20:07:43 +02:00
..
generic MIPS: TXx9: Fix error handling. 2009-09-17 20:07:43 +02:00
jmr3927 MIPS: TXx9: IOC LED support 2008-10-11 16:18:49 +01:00
rbtx4927 MIPS: TXx9: Add ACLC support 2009-06-17 11:06:25 +01:00
rbtx4938 MIPS: TXx9: Add SRAMC support 2009-06-17 11:06:27 +01:00
rbtx4939 MIPS: RBTX4939: Fix IOC pin-enable register updating 2009-08-03 17:52:44 +01:00
Kconfig MIPS: TXx9: Add ACLC support 2009-06-17 11:06:25 +01:00