commit 2295ba2e7c4141e864f66830b07e635245233a3d
author Bill Pemberton <wfp5p@virginia.edu> Tue Jul 28 13:46:22 2009 -0400
committer Greg Kroah-Hartman <gregkh@suse.de> Tue Sep 15 12:01:52 2009 -0700
tree 171fce7ebd2a1a770b98b7825d0d31d5b76abccc
parent 3d3b5518a35fa3c31b74224d944cbc83302c5ab4

Staging: hv: check return value of driver_for_each_device()

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>

drivers/staging/hv/storvsc_drv.c

diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index 385e84b..120ec52 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -188,8 +188,8 @@
 {
 	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 @@
 		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;