devshr: fixed crash

diff --git a/sys/src/9/port/devshr.c b/sys/src/9/port/devshr.c
index e6e4f439976dc15fbcaabfab51fe31cff5207943..62442b01831b5ebffe74408188aa01121db1d357 100644 (file)
--- a/sys/src/9/port/devshr.c
+++ b/sys/src/9/port/devshr.c
@@ -574,8 +574,8 @@ shrwrite(Chan *c, void *va, long n, vlong)
                        *p = 0;
        } else
                desc = "";
-       aname = strchr(buf, '\n') + 1;
-       if(aname != nil && *aname == 0)
+       aname = strchr(buf, '\n');
+       if(aname != nil && *++aname == 0)
                aname = nil;
        if(strlen(desc) > 128)
                error(Ebadarg);