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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Grigor Tovmasyan <tovmasya@synopsys.com>,
        Felipe Balbi <felipe.balbi@linux.intel.com>,
        Sasha Levin <alexander.levin@microsoft.com>
Subject: [PATCH 3.18 150/185] usb: dwc2: Fix interval type issue
Date:   Mon, 28 May 2018 12:03:11 +0200
Message-Id: <20180528100109.474425296@linuxfoundation.org>
In-Reply-To: <20180528100050.700971285@linuxfoundation.org>
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3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Grigor Tovmasyan <Grigor.Tovmasyan@synopsys.com>

[ Upstream commit 12814a3f8f9b247531d7863170cc82b3fe4218fd ]

The maximum value that unsigned char can hold is 255, meanwhile
the maximum value of interval is  2^(bIntervalMax-1)=2^15.

Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc2/core.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -144,7 +144,7 @@ struct s3c_hsotg_ep {
 	unsigned char           dir_in;
 	unsigned char           index;
 	unsigned char           mc;
-	unsigned char           interval;
+	u16                     interval;
 
 	unsigned int            halted:1;
 	unsigned int            periodic:1;