diff options
| author | Johan Hovold <johan@hovoldconsulting.com> | 2016-08-03 14:09:33 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2016-08-03 15:42:38 +0200 |
| commit | 121bae2bec47a9944049f2583b1d31f479110f0f (patch) | |
| tree | 62c57f5952002946f693cb04dfbb45461c359ae7 /drivers/staging/greybus/es2.c | |
| parent | 4ae2d962637e4a002d1f0884dceec800c79b3ea4 (diff) | |
greybus: es2: allow ARPC result to be ignored
Allow user of ARPC to pass a NULL pointer for the ARPC result.
For simple requests there may only be one error code for remote errors,
or the caller may simply not care to differentiate them.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus/es2.c')
| -rw-r--r-- | drivers/staging/greybus/es2.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c index c31124d7defc..8d0e52d46a2b 100644 --- a/drivers/staging/greybus/es2.c +++ b/drivers/staging/greybus/es2.c @@ -1184,7 +1184,8 @@ static int arpc_sync(struct es2_ap_dev *es2, u8 type, void *payload, unsigned long flags; int retval; - *result = 0; + if (result) + *result = 0; rpc = arpc_alloc(payload, size, type); if (!rpc) @@ -1209,7 +1210,8 @@ static int arpc_sync(struct es2_ap_dev *es2, u8 type, void *payload, if (rpc->resp->result) { retval = -EREMOTEIO; - *result = rpc->resp->result; + if (result) + *result = rpc->resp->result; } else { retval = 0; } |