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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 <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian Gromm 2015-12-22 10:52:53 +01:00 committed by Greg Kroah-Hartman
parent 44fe57818b
commit 42e252a65d
1 changed files with 5 additions and 2 deletions
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7
drivers/staging/most/mostcore/core.c
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@ -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;
}