From a71dcd3757e29cc8b43383ff18595d707cf08345 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 10 May 2019 10:58:32 +0100 Subject: reset: remove redundant null check on pointer dev Pointer dev is being dereferenced when passed to the inlined functon dev_name, however, dev is later being null checked so at first this seems like a potential null pointer dereference. In fact, _reset_control_get_from_lookup is only ever called from __reset_control_get, right after checking dev->of_node hence dev can never be null. Clean this up by removing the redundant null check. Thanks to Philipp Zabel for spotting that dev can never be null. Addresses-Coverity: ("Dereference before null check") Fixes: 6691dffab0ab ("reset: add support for non-DT systems") Signed-off-by: Colin Ian King Reviewed-by: Bartosz Golaszewski Signed-off-by: Philipp Zabel --- drivers/reset/core.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/reset/core.c b/drivers/reset/core.c index 81ea77cba123..921f4bbbad8a 100644 --- a/drivers/reset/core.c +++ b/drivers/reset/core.c @@ -694,9 +694,6 @@ __reset_control_get_from_lookup(struct device *dev, const char *con_id, const char *dev_id = dev_name(dev); struct reset_control *rstc = NULL; - if (!dev) - return ERR_PTR(-EINVAL); - mutex_lock(&reset_lookup_mutex); list_for_each_entry(lookup, &reset_lookup_list, list) { -- cgit v1.2.3