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2016-06-21coccinelle: also catch kzfree() issuesYann Droneaud1-1/+3
Since commit 3ef0e5ba4673 ('slab: introduce kzfree()'), kfree() is no more the only function to be considered: kzfree() should be recognized too. In particular, kzfree() must not be called on memory allocated through devm_*() functions. Cc: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2015-10-27coccinelle: ifnullfree: handle various destroy functionsJulia Lawall1-1/+9
Extend ifnullfree to the various destroy functions that were recently extended to tolerate NULL arguments. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-10-27coccinelle: ifnullfree: various cleanupsJulia Lawall1-11/+7
Adjust tests to compare against NULL, to match cases that explicitly make that comparison. Remove removal and re-addition of freeing functions. Add position variable on usb_free_urb in the non-patch case. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-08-09scripts/coccinelle/free/ifnullfree.cocci: add copyright informationFabian Frederick1-2/+3
All coccinelle scripts have a copyright in the header. Signed-off-by: Fabian Frederick <fabf@skynet.be> Suggested-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-09scripts/coccinelle/free: add NULL test before freeing functionsFabian Frederick1-0/+52
Warns or generates patch for NULL check before the following functions: kfree usb_free_urb debugfs_remove debugfs_remove_recursive Signed-off-by: Fabian Frederick <fabf@skynet.be> Acked-by: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Gilles Muller <Gilles.Muller@lip6.fr> Cc: Joe Perches <joe@perches.com> Cc: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>