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spi: bcm2835: add a sentinel at the end of the lookup array

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GPIOLIB expects the array of lookup entries to be terminated with an
empty member. We need to increase the size of the variable length array
in the lookup table by 1.

Fixes: 21f252cd29 ("spi: bcm2835: reduce the abuse of the GPIO API")
Reported-by: Hans de Goede <hdegoede@redhat.com>
Closes: https://lore.kernel.org/lkml/29764d46-8d3d-9794-bbde-d7928a91cbb5@redhat.com/
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231004183906.97845-1-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Bartosz Golaszewski 2023-10-04 20:39:06 +02:00 committed by Mark Brown
parent 8a6b446d8a
commit 9aaa25df9b
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1 changed files with 1 additions and 1 deletions
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drivers/spi/spi-bcm2835.c
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@ -1299,7 +1299,7 @@ static int bcm2835_spi_setup(struct spi_device *spi)
* More on the problem that it addresses:
* https://www.spinics.net/lists/linux-gpio/msg36218.html
*/
lookup = kzalloc(struct_size(lookup, table, 1), GFP_KERNEL);
lookup = kzalloc(struct_size(lookup, table, 2), GFP_KERNEL);
if (!lookup) {
ret = -ENOMEM;
goto err_cleanup;