mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-23 17:30:02 +00:00
Code Issues Releases Wiki Activity

ipmi_ssif: Fix logic around alert handling

Browse source 
There was a mistake in the logic, if an alert came in very quickly
it would hang the driver.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
Corey Minyard 2016-01-06 09:32:06 -06:00
parent 9dffdb38d8
commit 21c8f9154d
1 changed files with 4 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
drivers/char/ipmi/ipmi_ssif.c
View file

@ -920,23 +920,18 @@ static void msg_written_handler(struct ssif_info *ssif_info, int result,
msg_done_handler(ssif_info, -EIO, NULL, 0);
}
} else {
/* Ready to request the result. */
unsigned long oflags, *flags;
bool got_alert;
ssif_inc_stat(ssif_info, sent_messages);
ssif_inc_stat(ssif_info, sent_messages_parts);
flags = ipmi_ssif_lock_cond(ssif_info, &oflags);
got_alert = ssif_info->got_alert;
if (got_alert) {
if (ssif_info->got_alert) {
/* The result is already ready, just start it. */
ssif_info->got_alert = false;
ssif_info->waiting_alert = false;
}
if (got_alert) {
ipmi_ssif_unlock_cond(ssif_info, flags);
/* The alert already happened, try now. */
retry_timeout((unsigned long) ssif_info);
start_get(ssif_info);
} else {
/* Wait a jiffie then request the next message */
ssif_info->waiting_alert = true;