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Staging: hv: storvsc: Prevent outgoing traffic when stor dev is being destroyed

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Prevent outgoing traffic when stor dev is destroyed.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
K. Y. Srinivasan
2011-08-27 11:31:06 -07:00
committed by Greg Kroah-Hartman
parent f6c17484eb
commit 582f445fde
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/hv/hyperv_storage.h
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@@ -294,7 +294,8 @@ static inline struct storvsc_device *get_out_stor_device(
struct storvsc_device *stor_device;
stor_device = (struct storvsc_device *)device->ext;
if (stor_device && atomic_read(&stor_device->ref_count) > 1)
if (stor_device && (atomic_read(&stor_device->ref_count) > 1) &&
!stor_device->destroy)
atomic_inc(&stor_device->ref_count);
else
stor_device = NULL;