!voltage_ranges is tested for too late, allowing warning and undefined behavior. Fix that.
Signed-off-by: Pavel Machek <pa...@ucw.cz>
---
Plus I guess author should add parenthesis in the expression. a / b /
c is _not_ common idiom.
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 3a4402a..b3fa9c9 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -363,11 +363,11 @@ int mmc_of_parse_voltage(struct device_node *np, u32
*mask)
int num_ranges, i;
voltage_ranges = of_get_property(np, "voltage-ranges", &num_ranges);
- num_ranges = num_ranges / sizeof(*voltage_ranges) / 2;
if (!voltage_ranges) {
pr_debug("%pOF: voltage-ranges unspecified\n", np);
return 0;
}
+ num_ranges = num_ranges / sizeof(*voltage_ranges) / 2;
if (!num_ranges) {
pr_err("%pOF: voltage-ranges empty\n", np);
return -EINVAL;
--
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(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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