powerpc/85xx: fix race bug of calling request_irq after enable elbc interrupts
Shaohui Xie [Fri, 3 Jun 2011 02:45:11 +0000 (10:45 +0800)]
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/sysdev/fsl_lbc.c

index 0608b16..d917573 100644 (file)
@@ -196,9 +196,6 @@ static int __devinit fsl_lbc_ctrl_init(struct fsl_lbc_ctrl *ctrl,
        out_be32(&lbc->lteccr, LTECCR_CLEAR);
        out_be32(&lbc->ltedr, LTEDR_ENABLE);
 
-       /* Enable interrupts for any detected events */
-       out_be32(&lbc->lteir, LTEIR_ENABLE);
-
        /* Set the monitor timeout value to the maximum for erratum A001 */
        if (of_device_is_compatible(node, "fsl,elbc"))
                clrsetbits_be32(&lbc->lbcr, LBCR_BMT, LBCR_BMTPS);
@@ -322,6 +319,9 @@ static int __devinit fsl_lbc_ctrl_probe(struct platform_device *dev)
                goto err;
        }
 
+       /* Enable interrupts for any detected events */
+       out_be32(&fsl_lbc_ctrl_dev->regs->lteir, LTEIR_ENABLE);
+
        return 0;
 
 err: