Commit e7ddcd98 authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB (11251): tuner: prevent invalid initialization of t->config in set_type



Drivers that don't set "config" directly in the set_type function will
end up with an invalid configuration value. Check that the value is sane,
otherwise initialize to 0.

Thanks to James Edward Geiger & Steven Toth for reporting this bug.

Cc: Steven Toth <stoth@linuxtv.org>
Cc: James Edward Geiger <james.e.geiger@gmail.com>
Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 997fb78e
......@@ -364,7 +364,8 @@ static void set_type(struct i2c_client *c, unsigned int type,
}
t->type = type;
t->config = new_config;
/* prevent invalid config values */
t->config = ((new_config >= 0) && (new_config < 256)) ? new_config : 0;
if (tuner_callback != NULL) {
tuner_dbg("defining GPIO callback\n");
t->fe.callback = tuner_callback;
......
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