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-rw-r--r--arch/um/drivers/chan_kern.c4
-rw-r--r--arch/um/drivers/line.h1
2 files changed, 5 insertions, 0 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index 3a95498155a1..390920d63a24 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -547,6 +547,7 @@ int parse_chan_pair(char *str, struct line *line, int device,
char *in, *out;
if (!list_empty(chans)) {
+ line->chan_in = line->chan_out = NULL;
free_chan(chans);
INIT_LIST_HEAD(chans);
}
@@ -565,6 +566,7 @@ int parse_chan_pair(char *str, struct line *line, int device,
new->input = 1;
list_add(&new->list, chans);
+ line->chan_in = new;
new = parse_chan(line, out, device, opts, error_out);
if (new == NULL)
@@ -572,6 +574,7 @@ int parse_chan_pair(char *str, struct line *line, int device,
list_add(&new->list, chans);
new->output = 1;
+ line->chan_out = new;
}
else {
new = parse_chan(line, str, device, opts, error_out);
@@ -581,6 +584,7 @@ int parse_chan_pair(char *str, struct line *line, int device,
list_add(&new->list, chans);
new->input = 1;
new->output = 1;
+ line->chan_in = line->chan_out = new;
}
return 0;
}
diff --git a/arch/um/drivers/line.h b/arch/um/drivers/line.h
index 95991994a93b..6cb05a22e9b0 100644
--- a/arch/um/drivers/line.h
+++ b/arch/um/drivers/line.h
@@ -39,6 +39,7 @@ struct line {
char *init_str;
struct list_head chan_list;
+ struct chan *chan_in, *chan_out;
/*This lock is actually, mostly, local to*/
spinlock_t lock;