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[141.94.163.193]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-44a98b768fdsm4823539f8f.33.2026.05.01.06.59.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 May 2026 06:59:59 -0700 (PDT) From: John Madieu To: broonie@kernel.org, Frank.Li@nxp.com, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, carlos.song@nxp.com, linux-spi@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, John Madieu Subject: [PATCH 0/3] spi: imx: Three fixes for the i.MX SPI driver Date: Fri, 1 May 2026 13:59:48 +0000 Message-Id: <20260501135951.2416527-1-john.madieu@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260501_070002_975483_35AE9F12 X-CRM114-Status: GOOD ( 11.05 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi All, This series independent fixes found in the i.MX SPI driver. These are: 1/3 fixes a precedence bug in spi_imx_dma_max_wml_find() that makes the watermark-finding logic effectively dead code. The function currently always returns wml = 1 because of how the !-operator binds to the modulo expression. 2/3 fixes a missing return on the package-1 failure path in spi_imx_dma_data_prepare(). The error path frees the dma_data array and the package-0 buffers, then falls through to "return 0" - the caller proceeds with a freed pointer. 3/3 makes spi_imx_setupxfer() propagate the prepare_transfer() return value. Currently a -EINVAL from mx51_ecspi_prepare_transfer (e.g. on a word_delay overflow) is silently swallowed and the transfer proceeds with a partially-configured controller. Regards, John Madieu (3): spi: imx: Fix precedence bug in spi_imx_dma_max_wml_find() spi: imx: Fix UAF on package-1 prepare failure in spi_imx_dma_data_prepare() spi: imx: Propagate prepare_transfer() error from spi_imx_setupxfer() drivers/spi/spi-imx.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) -- 2.25.1