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clk: ti: Use int to check return value from of_property_count_elems_of_size() 

This function can return a negative number when it fails, but res->sets
is at most a u16 which can't hold that negative number. Let's store the
result into an int, ret, and then assign that to res->sets when it works
to avoid this logical impossibility.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
alistair/sunxi64-5.4-dsi
Stephen Boyd 2019-06-24 18:06:15 -07:00
parent 0af69227ed
commit 0b88bc9292
1 changed files with 5 additions and 4 deletions
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9
drivers/firmware/ti_sci.c
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@ -2402,12 +2402,13 @@ devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
if (!res)
return ERR_PTR(-ENOMEM);
res->sets = of_property_count_elems_of_size(dev_of_node(dev), of_prop,
sizeof(u32));
if (res->sets < 0) {
ret = of_property_count_elems_of_size(dev_of_node(dev), of_prop,
sizeof(u32));
if (ret < 0) {
dev_err(dev, "%s resource type ids not available\n", of_prop);
return ERR_PTR(res->sets);
return ERR_PTR(ret);
}
res->sets = ret;
res->desc = devm_kcalloc(dev, res->sets, sizeof(*res->desc),
GFP_KERNEL);