9p: fix option parsing
Options pointer is being moved before calling kfree() which seems
to cause problems. This uses a separate pointer to track and free
original allocation.
Signed-off-by: Venkateswararao Jujjuri <jvrao@us.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>w
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index be1cb90..31d0b05 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -714,7 +714,7 @@
char *p;
substring_t args[MAX_OPT_ARGS];
int option;
- char *options;
+ char *options, *tmp_options;
int ret;
opts->port = P9_PORT;
@@ -724,12 +724,13 @@
if (!params)
return 0;
- options = kstrdup(params, GFP_KERNEL);
- if (!options) {
+ tmp_options = kstrdup(params, GFP_KERNEL);
+ if (!tmp_options) {
P9_DPRINTK(P9_DEBUG_ERROR,
"failed to allocate copy of option string\n");
return -ENOMEM;
}
+ options = tmp_options;
while ((p = strsep(&options, ",")) != NULL) {
int token;
@@ -760,7 +761,8 @@
continue;
}
}
- kfree(options);
+
+ kfree(tmp_options);
return 0;
}