Messages in this thread | | | Date | Mon, 30 Nov 2015 17:56:15 -0800 | From | Brian Norris <> | Subject | Re: [PATCH 1/4 v2] mtd: brcmnand: improve memory management |
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On Thu, Nov 19, 2015 at 10:32:15PM +0100, Julia Lawall wrote: > This patch addresses two related memory management issues in the probe > function: > > 1. for_each_available_child_of_node performs an of_node_get on each > iteration, so a break out of the loop requires an of_node_put. > > A simplified version of the semantic patch that fixes this problem is as > follows (http://coccinelle.lip6.fr): > > // <smpl> > @@ > expression root,e; > local idexpression child; > @@ > > for_each_available_child_of_node(root, child) { > ... when != of_node_put(child) > when != e = child > ( > return child; > | > + of_node_put(child); > ? return ...; > ) > ... > } > // </smpl> > > 2. The devm_kzalloc'd data is not used if brcmnand_init_cs fails. Free it > immediately, using devm_kfree in this case, instead of waiting for the > remove function. > > Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> > > --- > > v2: Drop of_node_get addition, as another patch will get rid of the need > for it completely.
Pushed to l2-mtd.git
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