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author | Julia Lawall <julia@diku.dk> | 2009-09-13 21:15:18 +0200 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2009-09-17 20:07:43 +0200 |
commit | 70ebadc8e30efef3bf21ba94b3571537de8bcf4e (patch) | |
tree | 313727133efb7ea0881d2a78e8f1b83820ce3593 /arch/microblaze | |
parent | 13680ade4e57090a8ccad332e84e1f3d48b67125 (diff) |
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>
Diffstat (limited to 'arch/microblaze')
0 files changed, 0 insertions, 0 deletions