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path: root/drivers/dahdi/wcte12xp
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Diffstat (limited to 'drivers/dahdi/wcte12xp')
-rw-r--r--drivers/dahdi/wcte12xp/base.c11
-rw-r--r--drivers/dahdi/wcte12xp/wcte12xp.h1
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/dahdi/wcte12xp/base.c b/drivers/dahdi/wcte12xp/base.c
index 6ffb8ba..3139484 100644
--- a/drivers/dahdi/wcte12xp/base.c
+++ b/drivers/dahdi/wcte12xp/base.c
@@ -2145,6 +2145,16 @@ static void vpm_check_func(struct work_struct *work)
#endif
int res;
u16 version;
+ const int MAX_CHECKS = 5;
+
+ /* If there is a failed VPM module, do not block dahdi_cfg
+ * indefinitely. */
+ if (++wc->vpm_check_count > MAX_CHECKS) {
+ set_bit(READY, &wc->bit_flags);
+ wc->vpm_check = MAX_JIFFY_OFFSET;
+ t1_info(wc, "Disabling VPMADT032 Checking.\n");
+ return;
+ }
if (!test_bit(INITIALIZED, &wc->bit_flags))
return;
@@ -2154,6 +2164,7 @@ static void vpm_check_func(struct work_struct *work)
if (!res) {
set_bit(VPM150M_ACTIVE, &wc->ctlreg);
wc->vpm_check = jiffies + HZ*5;
+ wc->vpm_check_count = 0;
return;
}
diff --git a/drivers/dahdi/wcte12xp/wcte12xp.h b/drivers/dahdi/wcte12xp/wcte12xp.h
index 3630478..66f3323 100644
--- a/drivers/dahdi/wcte12xp/wcte12xp.h
+++ b/drivers/dahdi/wcte12xp/wcte12xp.h
@@ -115,6 +115,7 @@ struct t1 {
unsigned long bit_flags;
unsigned long alarmtimer;
unsigned char ledstate;
+ unsigned char vpm_check_count;
struct dahdi_span span; /* Span */
struct dahdi_chan *chans[32]; /* Channels */
struct dahdi_echocan_state *ec[32]; /* Echocan state for channels */