Author: loos
Date: Thu Jun 6 20:54:09 2019
New Revision: 348759
URL: https://svnweb.freebsd.org/changeset/base/348759
Log:
Zero the GPIO regulator pins memory.
This fixes a panic in Espressobin when gpioregulator fails to allocate the
GPIO pin (the GPIO controller is not there).
Sponsored by: Rubicon Communications, LLC (Netgate)
Modified:
head/sys/dev/gpio/gpioregulator.c
Modified: head/sys/dev/gpio/gpioregulator.c
==============================================================================
--- head/sys/dev/gpio/gpioregulator.c Thu Jun 6 20:35:41 2019
(r348758)
+++ head/sys/dev/gpio/gpioregulator.c Thu Jun 6 20:54:09 2019
(r348759)
@@ -248,7 +248,7 @@ gpioregulator_parse_fdt(struct gpioregulator_softc *sc
/* "gpios" property */
sc->init_def.npins = 32 - __builtin_clz(mask);
sc->init_def.pins = malloc(sc->init_def.npins *
- sizeof(sc->init_def.pins), M_DEVBUF, M_WAITOK);
+ sizeof(sc->init_def.pins), M_DEVBUF, M_WAITOK | M_ZERO);
for (n = 0; n < sc->init_def.npins; n++) {
error = gpio_pin_get_by_ofw_idx(sc->dev, node, n,
&sc->init_def.pins[n]);
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