[lkml]   [2016]   [Oct]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH 4.8 046/125] spi: spi-fsl-dspi: Drop extra spi_master_put in device remove function
4.8-stable review patch.  If anyone has any objections, please let me know.


From: Wei Yongjun <>

commit 6999aeabbb703a81a204cb6f9f8f151759a99ac4 upstream.

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 <>
Signed-off-by: Mark Brown <>
Signed-off-by: Greg Kroah-Hartman <>

drivers/spi/spi-fsl-dspi.c | 1 -
1 file changed, 1 deletion(-)

--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -760,7 +760,6 @@ static int dspi_remove(struct platform_d
/* Disconnect from the SPI framework */
- spi_master_put(dspi->master);

return 0;

 \ /
  Last update: 2016-10-29 16:08    [W:0.496 / U:0.244 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site