Commit 08a707b8 authored Aug 27, 2014 by Andy Shevchenko Committed by Mark Brown Aug 27, 2014

spi: dw: fix kernel crash due to NULL pointer dereference



The obvious fix after the commit d9c73bb8 "spi: dw: add support for gpio
controlled chip select". This patch fixes the issue by using locally defined
temporary variable.

Fixes: d9c73bb8 (spi: dw: add support for gpio controlled chip select)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: <stable@vger.kernel.org>

parent c9d5d6fe

drivers/spi/spi-dw.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -271,7 +271,7 @@ static void giveback(struct dw_spi *dws)
		transfer_list);

		if (!last_transfer->cs_change)
		spi_chip_sel(dws, dws->cur_msg->spi, 0);
		spi_chip_sel(dws, msg->spi, 0);

		spi_finalize_current_message(dws->master);
		}

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