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omap: Don't use hw_error() in device init() methods

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Device init() methods aren't supposed to call hw_error(), they should
report the error and fail cleanly.  Do that.

The errors are all device misconfiguration.  All callers use
qdev_init_nofail(), so this patch merely converts hw_error() crashes
into &error_abort crashes.  Improvement, because now it crashes closer
to where the misconfiguration bug would be, and a few more bad
examples of hw_error() use are gone.

Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1450370121-5768-3-git-send-email-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2015-12-17 17:35:10 +01:00
parent c525436e69
commit 84a3a53cf6
3 changed files with 34 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

29
hw/gpio/omap_gpio.c
View file

@ -21,6 +21,7 @@
#include "hw/hw.h"
#include "hw/arm/omap.h"
#include "hw/sysbus.h"
#include "qemu/error-report.h"
struct omap_gpio_s {
qemu_irq irq;
@ -682,7 +683,8 @@ static int omap_gpio_init(SysBusDevice *sbd)
struct omap_gpif_s *s = OMAP1_GPIO(dev);
if (!s->clk) {
hw_error("omap-gpio: clk not connected\n");
error_report("omap-gpio: clk not connected");
return -1;
}
qdev_init_gpio_in(dev, omap_gpio_set, 16);
qdev_init_gpio_out(dev, s->omap1.handler, 16);
@ -700,25 +702,35 @@ static int omap2_gpio_init(SysBusDevice *sbd)
int i;
if (!s->iclk) {
hw_error("omap2-gpio: iclk not connected\n");
error_report("omap2-gpio: iclk not connected");
return -1;
}
s->modulecount = s->mpu_model < omap2430 ? 4
: s->mpu_model < omap3430 ? 5
: 6;
for (i = 0; i < s->modulecount; i++) {
if (!s->fclk[i]) {
error_report("omap2-gpio: fclk%d not connected", i);
return -1;
}
}
if (s->mpu_model < omap3430) {
s->modulecount = (s->mpu_model < omap2430) ? 4 : 5;
memory_region_init_io(&s->iomem, OBJECT(s), &omap2_gpif_top_ops, s,
"omap2.gpio", 0x1000);
sysbus_init_mmio(sbd, &s->iomem);
} else {
s->modulecount = 6;
}
s->modules = g_new0(struct omap2_gpio_s, s->modulecount);
s->handler = g_new0(qemu_irq, s->modulecount * 32);
qdev_init_gpio_in(dev, omap2_gpio_set, s->modulecount * 32);
qdev_init_gpio_out(dev, s->handler, s->modulecount * 32);
for (i = 0; i < s->modulecount; i++) {
struct omap2_gpio_s *m = &s->modules[i];
if (!s->fclk[i]) {
hw_error("omap2-gpio: fclk%d not connected\n", i);
}
m->revision = (s->mpu_model < omap3430) ? 0x18 : 0x25;
m->handler = &s->handler[i * 32];
sysbus_init_irq(sbd, &m->irq[0]); /* mpu irq */
@ -728,6 +740,7 @@ static int omap2_gpio_init(SysBusDevice *sbd)
"omap.gpio-module", 0x1000);
sysbus_init_mmio(sbd, &m->iomem);
}
return 0;
}