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Sat, 28 Mar 2026 09:07:15 -0700 (PDT) From: Felix Gu Date: Sun, 29 Mar 2026 00:07:07 +0800 Subject: [PATCH 2/2] spi: stm32-ospi: Fix DMA channel leak on stm32_ospi_dma_setup() failure Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260329-stm32-ospi-v1-2-142122466412@gmail.com> References: <20260329-stm32-ospi-v1-0-142122466412@gmail.com> In-Reply-To: <20260329-stm32-ospi-v1-0-142122466412@gmail.com> To: Mark Brown , Maxime Coquelin , Alexandre Torgue , Philipp Zabel , Patrice Chotard Cc: linux-spi@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Felix Gu X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1774714028; l=1104; i=ustc.gu@gmail.com; h=from:subject:message-id; bh=g/NC5thUm9GobODU/U36/p17WTlVCj1qLtVx9sZkHSc=; b=aSWLNSCRp0D8866dSgcbY+JT4XedGUT6QeFZ4e3z25/G+O1t9HoLZs4yvCDebAVPEe6SBW0MI wJBP5VFN2niD5tp1lOmoFBkjn9PFB5InUP/CCkXoqJ2mkl3cCcQcxGB X-Developer-Key: i=ustc.gu@gmail.com; a=ed25519; pk=fjUXwmjchVN7Ja6KGP55IXOzFeCl9edaHoQIEUA+/hw= When stm32_ospi_dma_setup() fails, the DMA channels allocated by stm32_ospi_get_resources() were never released. Add proper cleanup in the error path. Fixes: e35a7607e05d ("spi: stm32-ospi: Set DMA maxburst dynamically") Signed-off-by: Felix Gu Reviewed-by: Patrice Chotard --- drivers/spi/spi-stm32-ospi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-stm32-ospi.c b/drivers/spi/spi-stm32-ospi.c index 52997c3f7174..34498939bcdf 100644 --- a/drivers/spi/spi-stm32-ospi.c +++ b/drivers/spi/spi-stm32-ospi.c @@ -923,7 +923,7 @@ static int stm32_ospi_probe(struct platform_device *pde= v) dma_cfg.dst_addr =3D ospi->regs_phys_base + OSPI_DR; ret =3D stm32_ospi_dma_setup(ospi, &dma_cfg); if (ret) - return ret; + goto err_dma_free; =20 mutex_init(&ospi->lock); =20 @@ -975,6 +975,7 @@ static int stm32_ospi_probe(struct platform_device *pde= v) err_pm_enable: pm_runtime_force_suspend(ospi->dev); mutex_destroy(&ospi->lock); +err_dma_free: if (ospi->dma_chtx) dma_release_channel(ospi->dma_chtx); if (ospi->dma_chrx) --=20 2.43.0