Commit 8fede89f authored by Mark Brown's avatar Mark Brown

spi: Make spi_delay_exec() warn if called from atomic context

If the delay used is long enough the spi_delay_exec() will use a sleeping
function to implement it. Add a might_sleep() here to help avoid callers
using this from an atomic context and running into problems at runtime on
other systems.
Suggested-by: default avatarSerge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200522155005.46099-1-broonie@kernel.orgSigned-off-by: default avatarMark Brown <broonie@kernel.org>
parent 36f8f189
......@@ -1160,6 +1160,8 @@ int spi_delay_exec(struct spi_delay *_delay, struct spi_transfer *xfer)
{
int delay;
might_sleep();
if (!_delay)
return -EINVAL;
......
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