From bbed8794d53b7043d7989e22bc2e1e399da305eb Mon Sep 17 00:00:00 2001 From: Frank Rowand Date: Tue, 17 Oct 2017 16:36:22 -0700 Subject: [PATCH] of: overlay.c: Convert comparisons to zero or NULL to logical expressions Use normal shorthand for comparing a variable to zero. For variable "XXX": convert (XXX == 0) to (!XXX) convert (XXX != 0) to (XXX) Signed-off-by: Frank Rowand Signed-off-by: Rob Herring --- drivers/of/overlay.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index a42dd7b..d3f4a597 100644 --- a/drivers/of/overlay.c +++ b/drivers/of/overlay.c @@ -169,9 +169,9 @@ static int of_overlay_apply_single_property(struct of_overlay *ov, tprop = of_find_property(target, prop->name, NULL); - if (of_prop_cmp(prop->name, "name") == 0 || - of_prop_cmp(prop->name, "phandle") == 0 || - of_prop_cmp(prop->name, "linux,phandle") == 0) + if (!of_prop_cmp(prop->name, "name") || + !of_prop_cmp(prop->name, "phandle") || + !of_prop_cmp(prop->name, "linux,phandle")) return 0; if (is_symbols_node) { @@ -182,10 +182,10 @@ static int of_overlay_apply_single_property(struct of_overlay *ov, propn = __of_prop_dup(prop, GFP_KERNEL); } - if (propn == NULL) + if (!propn) return -ENOMEM; - if (tprop == NULL) + if (!tprop) ret = of_changeset_add_property(&ov->cset, target, propn); else ret = of_changeset_update_property(&ov->cset, target, propn); @@ -206,14 +206,14 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov, int ret = 0; cname = kbasename(child->full_name); - if (cname == NULL) + if (!cname) return -ENOMEM; for_each_child_of_node(target, tchild) if (!of_node_cmp(cname, kbasename(tchild->full_name))) break; - if (tchild != NULL) { + if (tchild) { if (child->phandle) return -EINVAL; @@ -271,7 +271,7 @@ static int of_overlay_apply_one(struct of_overlay *ov, for_each_child_of_node(overlay, child) { ret = of_overlay_apply_single_device_node(ov, target, child); - if (ret != 0) { + if (ret) { pr_err("Failed to apply single node @%pOF/%s\n", target, child->name); of_node_put(child); @@ -300,7 +300,7 @@ static int of_overlay_apply(struct of_overlay *ov) err = of_overlay_apply_one(ov, ovinfo->target, ovinfo->overlay, ovinfo->is_symbols_node); - if (err != 0) { + if (err) { pr_err("apply failed '%pOF'\n", ovinfo->target); return err; } @@ -323,11 +323,11 @@ static struct device_node *find_target_node(struct device_node *info_node) int ret; ret = of_property_read_u32(info_node, "target", &val); - if (ret == 0) + if (!ret) return of_find_node_by_phandle(val); ret = of_property_read_string(info_node, "target-path", &path); - if (ret == 0) + if (!ret) return of_find_node_by_path(path); pr_err("Failed to find target for node %p (%s)\n", @@ -354,11 +354,11 @@ static int of_fill_overlay_info(struct of_overlay *ov, struct device_node *info_node, struct of_overlay_info *ovinfo) { ovinfo->overlay = of_get_child_by_name(info_node, "__overlay__"); - if (ovinfo->overlay == NULL) + if (!ovinfo->overlay) goto err_fail; ovinfo->target = find_target_node(info_node); - if (ovinfo->target == NULL) + if (!ovinfo->target) goto err_fail; return 0; @@ -398,13 +398,13 @@ static int of_build_overlay_info(struct of_overlay *ov, cnt++; ovinfo = kcalloc(cnt, sizeof(*ovinfo), GFP_KERNEL); - if (ovinfo == NULL) + if (!ovinfo) return -ENOMEM; cnt = 0; for_each_child_of_node(tree, node) { err = of_fill_overlay_info(ov, node, &ovinfo[cnt]); - if (err == 0) + if (!err) cnt++; } @@ -422,7 +422,7 @@ static int of_build_overlay_info(struct of_overlay *ov, cnt++; } - if (cnt == 0) { + if (!cnt) { kfree(ovinfo); return -ENODEV; } @@ -478,7 +478,7 @@ int of_overlay_create(struct device_node *tree) int err, id; ov = kzalloc(sizeof(*ov), GFP_KERNEL); - if (ov == NULL) + if (!ov) return -ENOMEM; ov->id = -1; @@ -629,7 +629,7 @@ int of_overlay_destroy(int id) mutex_lock(&of_mutex); ov = idr_find(&ov_idr, id); - if (ov == NULL) { + if (!ov) { err = -ENODEV; pr_err("destroy: Could not find overlay #%d\n", id); goto out; -- 2.7.4