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crypto: ccp - Disable interrupts early on unload
authorGary R Hook <ghook@amd.com>
Thu, 20 Apr 2017 20:24:22 +0000 (15:24 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 May 2017 12:28:37 +0000 (14:28 +0200)
commit 116591fe3eef11c6f06b662c9176385f13891183 upstream.

Ensure that we disable interrupts first when shutting down
the driver.

Signed-off-by: Gary R Hook <ghook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/crypto/ccp/ccp-dev-v5.c

index c85af39..a6cb078 100644 (file)
@@ -884,10 +884,10 @@ static void ccp5_destroy(struct ccp_device *ccp)
                iowrite32(cmd_q->qcontrol & ~CMD5_Q_RUN, cmd_q->reg_control);
 
                /* Disable the interrupts */
-               iowrite32(SUPPORTED_INTERRUPTS, cmd_q->reg_interrupt_status);
+               iowrite32(0x00, cmd_q->reg_int_enable);
 
                /* Clear the interrupt status */
-               iowrite32(0x00, cmd_q->reg_int_enable);
+               iowrite32(SUPPORTED_INTERRUPTS, cmd_q->reg_interrupt_status);
                ioread32(cmd_q->reg_int_status);
                ioread32(cmd_q->reg_status);
        }