The patch titled
drivers/ata: introduce missing kfree
has been added to the -mm tree. Its filename is
drivers-ata-introduce-missing-kfree.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: drivers/ata: introduce missing kfree
From: Julia Lawall <julia@xxxxxxx>
Error handling code following a kzalloc 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@xxxxxxx>
Cc: Jeff Garzik <jeff@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/ata/pata_at91.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN drivers/ata/pata_at91.c~drivers-ata-introduce-missing-kfree drivers/ata/pata_at91.c
--- a/drivers/ata/pata_at91.c~drivers-ata-introduce-missing-kfree
+++ a/drivers/ata/pata_at91.c
@@ -261,7 +261,8 @@ static int __devinit pata_at91_probe(str
if (IS_ERR(info->mck)) {
dev_err(dev, "failed to get access to mck clock\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_clk_get;
}
info->cs = board->chipselect;
@@ -308,6 +309,7 @@ err_alt_ioremap:
err_ide_ioremap:
clk_put(info->mck);
+err_clk_get:
kfree(info);
return ret;
_
Patches currently in -mm which might be from julia@xxxxxxx are
linux-next.patch
drivers-media-dvb-use-dst_type-field-instead-of-type_flags.patch
drivers-media-video-gspca-introduce-missing-kfree.patch
drivers-ata-use-resource_size.patch
drivers-mmc-correct-error-handling-code.patch
drivers-rtc-correct-error-handling-code.patch
drivers-video-imxfbc-fix-resource-size-off-by-1-error.patch
drivers-video-add-kmalloc-null-tests.patch
drivers-video-add-kmalloc-null-tests-fix.patch
edac-fix-resource-size-calculation.patch
fs-romfs-correct-error-handling-code.patch
drivers-vlynq-vlynqc-fix-resource-size-off-by-1-error.patch
drivers-rtc-introduce-missing-kfree.patch
drivers-hid-introduce-missing-kfree.patch
drivers-md-introduce-missing-kfree.patch
drivers-ata-introduce-missing-kfree.patch
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