tree 977fbd3081ba483b01c37dd1913ba4c9a0a95117
parent 4793d15b25821003486bb11b54eaf2f3130ecacd
author Tilman Schmidt <tilman@imap.cc> 1244365764 +0000
committer David S. Miller <davem@davemloft.net> 1244447151 -0700

isdn: prevent NULL ptr Oops in capi_cmsg2str()

The dereferencing of the private pointer cmsg->m in capi_cmsg2str() may
cause an Oops in case of an error, which is particularly inconvenient
as that function is typically used to format an error message. Add a
NULL pointer check to avoid this.

Impact: error handling improvement
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>