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authorJohannes Thumshirn <jthumshirn@suse.de>2015-07-08 18:24:46 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-08-05 23:25:59 +0300
commite2ef93930326134001523016782daddf1a4b78a2 (patch)
tree29c8a0c63b532c112f8d5030c4b583cd42dcfb73 /drivers/uio
parent513da46d4b72bf6c4c956c57044fcbcfe321deeb (diff)
downloadlinux-e2ef93930326134001523016782daddf1a4b78a2.tar.xz
uio: Destroy uio_idr on module exit
Destroy uio_idr on module exit, reclaiming the allocated memory. This was detected by the following semantic patch (written by Luis Rodriguez <mcgrof@suse.com>) <SmPL> @ defines_module_init @ declarer name module_init, module_exit; declarer name DEFINE_IDR; identifier init; @@ module_init(init); @ defines_module_exit @ identifier exit; @@ module_exit(exit); @ declares_idr depends on defines_module_init && defines_module_exit @ identifier idr; @@ DEFINE_IDR(idr); @ on_exit_calls_destroy depends on declares_idr && defines_module_exit @ identifier declares_idr.idr, defines_module_exit.exit; @@ exit(void) { ... idr_destroy(&idr); ... } @ missing_module_idr_destroy depends on declares_idr && defines_module_exit && !on_exit_calls_destroy @ identifier declares_idr.idr, defines_module_exit.exit; @@ exit(void) { ... +idr_destroy(&idr); } </SmPL> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
-rw-r--r--drivers/uio/uio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 3257d4220d01..8196581f54c2 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -896,6 +896,7 @@ static int __init uio_init(void)
static void __exit uio_exit(void)
{
release_uio_class();
+ idr_destroy(&uio_idr);
}
module_init(uio_init)