This is a note to let you know that I've just added the patch titled spi: omap-100k: Fix the length judgment problem to the 5.12-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: spi-omap-100k-fix-the-length-judgment-problem.patch and it can be found in the queue-5.12 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 7817d239735ca92f910f8a8ca78edafd255ae5ae Author: Tian Tao <tiantao6@xxxxxxxxxxxxx> Date: Thu Apr 29 19:20:48 2021 +0800 spi: omap-100k: Fix the length judgment problem [ Upstream commit e7a1a3abea373e41ba7dfe0fbc93cb79b6a3a529 ] word_len should be checked in the omap1_spi100k_setup_transfer function to see if it exceeds 32. Signed-off-by: Tian Tao <tiantao6@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/1619695248-39045-1-git-send-email-tiantao6@xxxxxxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c index ccd817ee4917..0d0cd061d356 100644 --- a/drivers/spi/spi-omap-100k.c +++ b/drivers/spi/spi-omap-100k.c @@ -241,7 +241,7 @@ static int omap1_spi100k_setup_transfer(struct spi_device *spi, else word_len = spi->bits_per_word; - if (spi->bits_per_word > 32) + if (word_len > 32) return -EINVAL; cs->word_len = word_len;