From: Wei Yongjun <weiyj.lk@gmail.com>
Date: Sat, 20 Aug 2016 15:25:32 +0000 (+0000)
Subject: spi: spi-fsl-dspi: Drop extra spi_master_put in device remove function
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6999aeabbb703a81a204cb6f9f8f151759a99ac4;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

spi: spi-fsl-dspi: Drop extra spi_master_put in device remove function

The call sequence spi_alloc_master/spi_register_master/spi_unregister_master
is complete; it reduces the device reference count to zero, which and results
in device memory being freed. The subsequent call to spi_master_put is
unnecessary and results in an access to free memory. Drop it.

Fixes: 9298bc727385 ("spi: spi-fsl-dspi: Remove spi-bitbang")
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 95d8b929cd52..35c0dd945668 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -763,7 +763,6 @@ static int dspi_remove(struct platform_device *pdev)
 	/* Disconnect from the SPI framework */
 	clk_disable_unprepare(dspi->clk);
 	spi_unregister_master(dspi->master);
-	spi_master_put(dspi->master);
 
 	return 0;
 }