Note that if an invalid protocol was selected, we already get the error
"Invalid protocols selected".
Signed-off-by: Sean Young <sean@xxxxxxxx>
---
utils/keytable/keytable.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/utils/keytable/keytable.c b/utils/keytable/keytable.c
index 7b0d1acb..1fd545b0 100644
--- a/utils/keytable/keytable.c
+++ b/utils/keytable/keytable.c
@@ -23,6 +23,7 @@
#include <linux/input.h>
#include <sys/ioctl.h>
#include <sys/types.h>
+#include <sys/stat.h>
#include <dirent.h>
#include <argp.h>
#include <stdbool.h>
@@ -991,10 +992,14 @@ static int v2_set_protocols(struct rc_device *rc_dev)
{
FILE *fp;
char name[4096];
+ struct stat st;
strcpy(name, rc_dev->sysfs_name);
strcat(name, "/protocols");
+ if (!stat(name, &st) && !(st.st_mode & 0222))
+ return 0;
+
fp = fopen(name, "w");
if (!fp) {
perror(name);
--
2.13.5
