diff options
Diffstat (limited to 'drivers/opp/of.c')
| -rw-r--r-- | drivers/opp/of.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/opp/of.c b/drivers/opp/of.c index 0c55862f5624..61fce1284f01 100644 --- a/drivers/opp/of.c +++ b/drivers/opp/of.c @@ -577,8 +577,8 @@ void dev_pm_opp_of_remove_table(struct device *dev) } EXPORT_SYMBOL_GPL(dev_pm_opp_of_remove_table); -static int _read_bw(struct dev_pm_opp *new_opp, struct device_node *np, - bool peak) +static int _read_bw(struct dev_pm_opp *new_opp, struct opp_table *table, + struct device_node *np, bool peak) { const char *name = peak ? "opp-peak-kBps" : "opp-avg-kBps"; struct property *prop; @@ -590,6 +590,12 @@ static int _read_bw(struct dev_pm_opp *new_opp, struct device_node *np, return -ENODEV; count = prop->length / sizeof(u32); + if (table->path_count != count) { + pr_err("%s: Mismatch between %s and paths (%d %d)\n", + __func__, name, count, table->path_count); + return -EINVAL; + } + bw = kmalloc_array(count, sizeof(*bw), GFP_KERNEL); if (!bw) return -ENOMEM; @@ -612,8 +618,8 @@ out: return ret; } -static int _read_opp_key(struct dev_pm_opp *new_opp, struct device_node *np, - bool *rate_not_available) +static int _read_opp_key(struct dev_pm_opp *new_opp, struct opp_table *table, + struct device_node *np, bool *rate_not_available) { bool found = false; u64 rate; @@ -636,10 +642,10 @@ static int _read_opp_key(struct dev_pm_opp *new_opp, struct device_node *np, * opp-peak-kBps = <path1_value path2_value>; * opp-avg-kBps = <path1_value path2_value>; */ - ret = _read_bw(new_opp, np, true); + ret = _read_bw(new_opp, table, np, true); if (!ret) { found = true; - ret = _read_bw(new_opp, np, false); + ret = _read_bw(new_opp, table, np, false); } /* The properties were found but we failed to parse them */ @@ -692,7 +698,7 @@ static struct dev_pm_opp *_opp_add_static_v2(struct opp_table *opp_table, if (!new_opp) return ERR_PTR(-ENOMEM); - ret = _read_opp_key(new_opp, np, &rate_not_available); + ret = _read_opp_key(new_opp, opp_table, np, &rate_not_available); if (ret < 0 && !opp_table->is_genpd) { dev_err(dev, "%s: opp key field not found\n", __func__); goto free_opp; |