[media] Fix sysfs rc protocol lookup for rc-5-sz

With the current matching rules the lookup for rc protocol named rc-5-sz matches with "rc-5" before finding "rc-5-sz". Thus one is able to never enable/disable the rc-5-sz protocol via sysfs.

Fix the lookup to require an exact match which allows the manipulation of sz protocol.

Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 72be8a0..e5b29a4 100644 (file)
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -844,7 +844,7 @@ static ssize_t store_protocols(struct device *device,
                        count++;
                } else {
                        for (i = 0; i < ARRAY_SIZE(proto_names); i++) {
-                               if (!strncasecmp(tmp, proto_names[i].name, strlen(proto_names[i].name))) {
+                               if (!strcasecmp(tmp, proto_names[i].name)) {
                                        tmp += strlen(proto_names[i].name);
                                        mask = proto_names[i].type;
                                        break;