[PATCH 076/117] Staging: hv: storvsc: Do not aquire an unnecessary reference on stor_device

K. Y. Srinivasan
2011-07-15T17:39:57Z

On entry into storvsc_on_io_completion() we have already acquired a reference
on the stor_device; there is no need to acquire an additional reference here.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
---
drivers/staging/hv/storvsc.c | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/hv/storvsc.c b/drivers/staging/hv/storvsc.c
index 8c62829..cd38cd6 100644
--- a/drivers/staging/hv/storvsc.c
+++ b/drivers/staging/hv/storvsc.c
@@ -232,9 +232,7 @@ static void storvsc_on_io_completion(struct hv_device *device,
struct storvsc_device *stor_device;
struct vstor_packet *stor_pkt;

- stor_device = must_get_stor_device(device);
- if (!stor_device)
- return;
+ stor_device = (struct storvsc_device *)device->ext;

stor_pkt = &request->vstor_packet;

@@ -279,7 +277,6 @@ static void storvsc_on_io_completion(struct hv_device *device,
wake_up(&stor_device->waiting_to_drain);

- put_stor_device(device);
}

static void storvsc_on_receive(struct hv_device *device,
--
1.7.4.1