5.15-stable review patch. If anyone has any objections, please let me know.
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From: Miaoqian Lin linmq006@gmail.com
commit b47b493d6387ae437098112936f32be27f73516c upstream.
In get_channel(), the reference obtained by bus_find_device_by_name() was dropped via put_device() before accessing the device's driver data Move put_device() after usage to avoid potential issues.
Fixes: 2485055394be ("staging: most: core: drop device reference") Cc: stable stable@kernel.org Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20250804082955.3621026-1-linmq006@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/most/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/most/core.c +++ b/drivers/most/core.c @@ -538,8 +538,8 @@ static struct most_channel *get_channel( dev = bus_find_device_by_name(&mostbus, NULL, mdev); if (!dev) return NULL; - put_device(dev); iface = dev_get_drvdata(dev); + put_device(dev); list_for_each_entry_safe(c, tmp, &iface->p->channel_list, list) { if (!strcmp(dev_name(&c->dev), mdev_ch)) return c;