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Message-Id: <1420876474-9205-5-git-send-email-kys@microsoft.com> Date: Fri, 9 Jan 2015 23:54:33 -0800 From: "K. Y. Srinivasan" <kys@...rosoft.com> To: gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org, devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com, vkuznets@...hat.com Cc: "K. Y. Srinivasan" <kys@...rosoft.com> Subject: [PATCH RESEND 5/6] Drivers: hv: vmbus: Fix a bug in vmbus_establish_gpadl() Correctly compute the local (gpadl) handle. I would like to thank Michael Brown <mcb30@...e.org> for seeing this bug. Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com> Reported-by: Michael Brown <mcb30@...e.org> --- drivers/hv/channel.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 433f72a..c76ffbe 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -366,8 +366,8 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer, unsigned long flags; int ret = 0; - next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle); - atomic_inc(&vmbus_connection.next_gpadl_handle); + next_gpadl_handle = + (atomic_inc_return(&vmbus_connection.next_gpadl_handle) - 1); ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount); if (ret) -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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