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Staging: hv: vmbus: Check before invoking the channel callback

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When we close a channel, we set the corresponding callback function to NULL.
Check before invoking the channel callback.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
K. Y. Srinivasan
2011-08-27 11:31:32 -07:00
committed by Greg Kroah-Hartman
parent 95ff7cde91
commit 76c39d429d
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/hv/connection.c
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@@ -222,7 +222,7 @@ static void process_chn_event(u32 relid)
*/
channel = relid2channel(relid);
if (channel) {
if (channel && (channel->onchannel_callback != NULL)) {
channel->onchannel_callback(channel->channel_callback_context);
} else {
pr_err("channel not found for relid - %u\n", relid);