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hw/qdev-clock: Display error hint when clock is missing from device 

Instead of directly aborting, display a hint to help the developer
figure out the problem (likely trying to connect a clock to a device
pre-dating the Clock API, thus not expecting clocks).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Reviewed-by: Damien Hedde <damien.hedde@greensocs.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-Id: <20201012095804.3335117-4-f4bug@amsat.org>
This commit is contained in:
Philippe Mathieu-Daudé 2020-10-12 11:57:46 +02:00
parent 709616c713
commit 01d858629e
1 changed files with 11 additions and 0 deletions
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11
hw/core/qdev-clock.c
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@ -12,6 +12,7 @@
*/
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "hw/qdev-clock.h"
#include "hw/qdev-core.h"
#include "qapi/error.h"
@ -153,6 +154,11 @@ Clock *qdev_get_clock_in(DeviceState *dev, const char *name)
assert(name);
ncl = qdev_get_clocklist(dev, name);
if (!ncl) {
error_report("Can not find clock-in '%s' for device type '%s'",
name, object_get_typename(OBJECT(dev)));
abort();
}
assert(!ncl->output);
return ncl->clock;
@ -165,6 +171,11 @@ Clock *qdev_get_clock_out(DeviceState *dev, const char *name)
assert(name);
ncl = qdev_get_clocklist(dev, name);
if (!ncl) {
error_report("Can not find clock-out '%s' for device type '%s'",
name, object_get_typename(OBJECT(dev)));
abort();
}
assert(ncl->output);
return ncl->clock;