1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 68452b768da2..03a0a01a4054 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -248,6 +248,8 @@ static inline void dump_rawmsg(enum debuglevel level, const char *tag,
                 CAPIMSG_APPID(data), CAPIMSG_MSGID(data), l,
                 CAPIMSG_CONTROL(data));
         l -= 12;
+        if (l <= 0)
+                return;
         dbgline = kmalloc(3 * l, GFP_ATOMIC);
         if (!dbgline)
                 return;