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greybus: operation: fix atomic response allocation 

Response allocation also needs a GFP-flags argument as a response is
allocated as part of an outgoing operation.

Fixes: 9aa174d202e5 ("operation: allow atomic operation allocations")
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2015-07-17 18:50:25 +02:00 committed by Greg Kroah-Hartman
parent 93047af23c
commit 1c7658cf51
4 changed files with 11 additions and 8 deletions
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3
drivers/staging/greybus/control.c
View File

@ -75,7 +75,8 @@ static int gb_control_request_recv(u8 type, struct gb_operation *op)
// an AP.
break;
case GB_CONTROL_TYPE_PROTOCOL_VERSION:
if (!gb_operation_response_alloc(op, sizeof(*version))) {
if (!gb_operation_response_alloc(op, sizeof(*version),
GFP_KERNEL)) {
dev_err(&connection->dev,
"%s: error allocating response\n", __func__);
return -ENOMEM;

3
drivers/staging/greybus/loopback.c
View File

@ -283,7 +283,8 @@ static int gb_loopback_request_recv(u8 type, struct gb_operation *operation)
}
if (len) {
if (!gb_operation_response_alloc(operation, len)) {
if (!gb_operation_response_alloc(operation, len,
GFP_KERNEL)) {
dev_err(&connection->dev,
"error allocating response\n");
return -ENOMEM;

11
drivers/staging/greybus/operation.c
View File

@ -426,7 +426,7 @@ static u8 gb_operation_errno_map(int errno)
}
bool gb_operation_response_alloc(struct gb_operation *operation,
size_t response_size)
size_t response_size, gfp_t gfp)
{
struct greybus_host_device *hd = operation->connection->hd;
struct gb_operation_msg_hdr *request_header;
@ -434,8 +434,7 @@ bool gb_operation_response_alloc(struct gb_operation *operation,
u8 type;
type = operation->type | GB_MESSAGE_TYPE_RESPONSE;
response = gb_operation_message_alloc(hd, type, response_size,
GFP_KERNEL);
response = gb_operation_message_alloc(hd, type, response_size, gfp);
if (!response)
return false;
response->operation = operation;
@ -497,8 +496,10 @@ gb_operation_create_common(struct gb_connection *connection, u8 type,
/* Allocate the response buffer for outgoing operations */
if (!(op_flags & GB_OPERATION_FLAG_INCOMING)) {
if (!gb_operation_response_alloc(operation, response_size))
if (!gb_operation_response_alloc(operation, response_size,
gfp_flags)) {
goto err_request;
}
}
operation->flags = op_flags;
@ -734,7 +735,7 @@ static int gb_operation_response_send(struct gb_operation *operation,
if (!operation->response &&
!gb_operation_is_unidirectional(operation)) {
if (!gb_operation_response_alloc(operation, 0))
if (!gb_operation_response_alloc(operation, 0, GFP_KERNEL))
return -ENOMEM;
}

2
drivers/staging/greybus/operation.h
View File

@ -166,7 +166,7 @@ static inline void gb_operation_destroy(struct gb_operation *operation)
}
bool gb_operation_response_alloc(struct gb_operation *operation,
size_t response_size);
size_t response_size, gfp_t gfp);
int gb_operation_request_send(struct gb_operation *operation,
gb_operation_callback callback,