From 42e252a65d3bbd36106b3e243cb1e11136cecdf4 Mon Sep 17 00:00:00 2001 From: Christian Gromm Date: Tue, 22 Dec 2015 10:52:53 +0100 Subject: [PATCH] staging: most: move initialization of pointer This patch makes function store_add_link initialize the pointer to an AIM right before the channel is probed. It is needed, the AIM may already call most_start_channel while probe_channel is still running. At this point the pointer to the AIM must not be NULL. Signed-off-by: Christian Gromm Signed-off-by: Greg Kroah-Hartman --- drivers/staging/most/mostcore/core.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c index d5ef61df1f9b..21c550ccfe78 100644 --- a/drivers/staging/most/mostcore/core.c +++ b/drivers/staging/most/mostcore/core.c @@ -996,11 +996,14 @@ static ssize_t store_add_link(struct most_aim_obj *aim_obj, else return -ENOSPC; + *aim_ptr = aim_obj->driver; ret = aim_obj->driver->probe_channel(c->iface, c->channel_id, &c->cfg, &c->kobj, mdev_devnod); - if (ret) + if (ret) { + *aim_ptr = NULL; return ret; - *aim_ptr = aim_obj->driver; + } + return len; } -- 2.39.5