[PATCH] isdn: eicon: fix a missing check of api_parse

[Kangjie Lu]

api_parse can fail, and if it fails, we should not use the ss_parms
which can be incorrect.
The fix checks its return value and stops using ss_parms if api_parse
fails.

Signed-off-by: Kangjie Lu <k...@umn.edu>
---
 drivers/isdn/hardware/eicon/message.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/isdn/hardware/eicon/message.c 
b/drivers/isdn/hardware/eicon/message.c
index def7992a38e6..afb4a7d88288 100644
--- a/drivers/isdn/hardware/eicon/message.c
+++ b/drivers/isdn/hardware/eicon/message.c
@@ -1846,7 +1846,13 @@ static byte facility_req(dword Id, word Number, 
DIVA_CAPI_ADAPTER *a,
                                break;
 
                        case S_HOLD:
-                               api_parse(&parms->info[1], (word)parms->length, 
"ws", ss_parms);
+                               if (api_parse(&parms->info[1],
+                                                       (word)parms->length,
+                                                       "ws", ss_parms)) {
+                                       dbug(1, dprintf("format wrong"));
+                                       Info = _WRONG_MESSAGE_FORMAT;
+                                       break;
+                               }
                                if (plci && plci->State && plci->SuppState == 
IDLE)
                                {
                                        plci->SuppState = HOLD_REQUEST;
-- 
2.17.2 (Apple Git-113)