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Staging: hv: check return value of driver_for_each_device()

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The return value of driver_for_each_device() is now checked.  A
non-zero value simply generates a warning message, but it's better
than not checking at all.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Bill Pemberton 2009-07-28 13:46:22 -04:00 committed by Greg Kroah-Hartman
parent 3d3b5518a3
commit 2295ba2e7c
3 changed files with 26 additions and 6 deletions
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11
drivers/staging/hv/blkvsc_drv.c
View file

@ -218,8 +218,8 @@ void blkvsc_drv_exit(void)
{
STORVSC_DRIVER_OBJECT *storvsc_drv_obj=&g_blkvsc_drv.drv_obj;
struct driver_context *drv_ctx=&g_blkvsc_drv.drv_ctx;
struct device *current_dev=NULL;
int ret;
DPRINT_ENTER(BLKVSC_DRV);
@ -228,7 +228,14 @@ void blkvsc_drv_exit(void)
current_dev = NULL;
/* Get the device */
driver_for_each_device(&drv_ctx->driver, NULL, (void*)&current_dev, blkvsc_drv_exit_cb);
ret = driver_for_each_device(&drv_ctx->driver, NULL,
(void *) &current_dev,
blkvsc_drv_exit_cb);
if (ret)
DPRINT_WARN(BLKVSC_DRV,
"driver_for_each_device returned %d", ret);
if (current_dev == NULL)
break;

11
drivers/staging/hv/netvsc_drv.c
View file

@ -638,8 +638,8 @@ void netvsc_drv_exit(void)
{
NETVSC_DRIVER_OBJECT *netvsc_drv_obj=&g_netvsc_drv.drv_obj;
struct driver_context *drv_ctx=&g_netvsc_drv.drv_ctx;
struct device *current_dev=NULL;
int ret;
DPRINT_ENTER(NETVSC_DRV);
@ -648,7 +648,14 @@ void netvsc_drv_exit(void)
current_dev = NULL;
/* Get the device */
driver_for_each_device(&drv_ctx->driver, NULL, (void*)&current_dev, netvsc_drv_exit_cb);
ret = driver_for_each_device(&drv_ctx->driver, NULL,
(void *) &current_dev,
netvsc_drv_exit_cb);
if (ret)
DPRINT_WARN(NETVSC_DRV,
"driver_for_each_device returned %d", ret);
if (current_dev == NULL)
break;

10
drivers/staging/hv/storvsc_drv.c
View file

@ -188,8 +188,8 @@ void storvsc_drv_exit(void)
{
STORVSC_DRIVER_OBJECT *storvsc_drv_obj=&g_storvsc_drv.drv_obj;
struct driver_context *drv_ctx=&g_storvsc_drv.drv_ctx;
struct device *current_dev=NULL;
int ret;
DPRINT_ENTER(STORVSC_DRV);
@ -198,7 +198,13 @@ void storvsc_drv_exit(void)
current_dev = NULL;
/* Get the device */
driver_for_each_device(&drv_ctx->driver, NULL, (void*)&current_dev, storvsc_drv_exit_cb);
ret = driver_for_each_device(&drv_ctx->driver, NULL,
(void *) &current_dev,
storvsc_drv_exit_cb);
if (ret)
DPRINT_WARN(STORVSC_DRV,
"driver_for_each_device returned %d", ret);
if (current_dev == NULL)
break;