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staging: unisys: visorbus: add error handling around kobject_uevent

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The function kobject_uevent_env can return an error, pass that error
to the caller so it can be handled correctly.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Kershner 2017-03-28 09:34:22 -04:00 committed by Greg Kroah-Hartman
parent ae0fa822d7
commit deeeca6db2
1 changed files with 16 additions and 10 deletions
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26
drivers/staging/unisys/visorbus/visorchipset.c
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@ -1277,12 +1277,15 @@ parahotplug_process_message(struct controlvm_message *inmsg)
static int
chipset_ready_uevent(struct controlvm_message_header *msg_hdr)
{
kobject_uevent(&chipset_dev->acpi_device->dev.kobj, KOBJ_ONLINE);
int res;
res = kobject_uevent(&chipset_dev->acpi_device->dev.kobj,
KOBJ_ONLINE);
if (msg_hdr->flags.response_expected)
return controlvm_respond(msg_hdr, CONTROLVM_RESP_SUCCESS);
controlvm_respond(msg_hdr, res);
return 0;
return res;
}
/*
@ -1297,15 +1300,16 @@ chipset_selftest_uevent(struct controlvm_message_header *msg_hdr)
{
char env_selftest[20];
char *envp[] = { env_selftest, NULL };
int res;
sprintf(env_selftest, "SPARSP_SELFTEST=%d", 1);
kobject_uevent_env(&chipset_dev->acpi_device->dev.kobj, KOBJ_CHANGE,
envp);
res = kobject_uevent_env(&chipset_dev->acpi_device->dev.kobj,
KOBJ_CHANGE, envp);
if (msg_hdr->flags.response_expected)
return controlvm_respond(msg_hdr, CONTROLVM_RESP_SUCCESS);
controlvm_respond(msg_hdr, res);
return 0;
return res;
}
/*
@ -1318,12 +1322,14 @@ chipset_selftest_uevent(struct controlvm_message_header *msg_hdr)
static int
chipset_notready_uevent(struct controlvm_message_header *msg_hdr)
{
kobject_uevent(&chipset_dev->acpi_device->dev.kobj, KOBJ_OFFLINE);
int res;
res = kobject_uevent(&chipset_dev->acpi_device->dev.kobj,
KOBJ_OFFLINE);
if (msg_hdr->flags.response_expected)
return controlvm_respond(msg_hdr, CONTROLVM_RESP_SUCCESS);
controlvm_respond(msg_hdr, res);
return 0;
return res;
}
static unsigned int