diff options
author | Arnd Bergmann <arnd@arndb.de> | 2016-10-25 22:57:10 +0200 |
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committer | Mark Brown <broonie@kernel.org> | 2016-10-26 11:14:52 +0100 |
commit | 5c0ba57744b1422d528f19430dd66d6803cea86f (patch) | |
tree | c0d2696dc0d1d5f68a783e7f84f4dc8e23864633 /Documentation | |
parent | 1001354ca34179f3db924eb66672442a173147dc (diff) |
spi: fsl-espi: avoid processing uninitalized data on error
When we get a spurious interrupt in fsl_espi_irq, we end up
processing four uninitalized bytes of data, as shown in this
warning message:
drivers/spi/spi-fsl-espi.c: In function 'fsl_espi_irq':
drivers/spi/spi-fsl-espi.c:462:4: warning: 'rx_data' may be used uninitialized in this function [-Wmaybe-uninitialized]
This adds another check so we skip the data in this case.
Fixes: 6319a68011b8 ("spi/fsl-espi: avoid infinite loops on fsl_espi_cpu_irq()")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Diffstat (limited to 'Documentation')