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authorEric Van Hensbergen <ericvh@gmail.com>2010-02-09 01:23:23 +0300
committerEric Van Hensbergen <ericvh@gmail.com>2010-02-09 01:23:23 +0300
commitd8c8a9e36560e9ff4c99279d64ce5dd0e1a33fa6 (patch)
treeb52f301bd5811b9b813b6d244b555edbab38299a /net/9p/trans_rdma.c
parent7a4439c406c21b1e900ed497cec1a79d05b38c07 (diff)
downloadlinux-d8c8a9e36560e9ff4c99279d64ce5dd0e1a33fa6.tar.xz
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
Diffstat (limited to 'net/9p/trans_rdma.c')
-rw-r--r--net/9p/trans_rdma.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index 65cb29db03f8..2c95a89c0f46 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -166,7 +166,7 @@ static int parse_opts(char *params, struct p9_rdma_opts *opts)
char *p;
substring_t args[MAX_OPT_ARGS];
int option;
- char *options;
+ char *options, *tmp_options;
int ret;
opts->port = P9_PORT;
@@ -177,12 +177,13 @@ static int parse_opts(char *params, struct p9_rdma_opts *opts)
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;
@@ -216,7 +217,7 @@ static int parse_opts(char *params, struct p9_rdma_opts *opts)
}
/* RQ must be at least as large as the SQ */
opts->rq_depth = max(opts->rq_depth, opts->sq_depth);
- kfree(options);
+ kfree(tmp_options);
return 0;
}