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| author | Lukas Wunner <lukas@wunner.de> | 2020-12-07 11:17:08 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-12-07 17:18:53 +0300 |
| commit | 0f4ad8d59f33b24dd86739f3be23e6af1a86f5a9 (patch) | |
| tree | d1ab04cdda7e2feab664c8eef549a359189b4c8d /drivers/spi | |
| parent | cc53711b2191cf3b3210283ae89bf0abb98c70a3 (diff) | |
| download | linux-0f4ad8d59f33b24dd86739f3be23e6af1a86f5a9.tar.xz | |
spi: spi-mtk-nor: Don't leak SPI master in probe error path
If the call to devm_spi_register_controller() fails on probe of the
MediaTek SPI NOR driver, the spi_controller struct is erroneously not
freed.
Since commit a1daaa991ed1 ("spi: spi-mtk-nor: use dma_alloc_coherent()
for bounce buffer"), the same happens if the call to
dmam_alloc_coherent() fails.
Since commit 3bfd9103c7af ("spi: spi-mtk-nor: Add power management
support"), the same happens if the call to mtk_nor_enable_clk() fails.
Fix by switching over to the new devm_spi_alloc_master() helper.
Fixes: 881d1ee9fe81 ("spi: add support for mediatek spi-nor controller")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Ikjoon Jang <ikjn@chromium.org>
Cc: <stable@vger.kernel.org> # v5.7+: 5e844cc37a5c: spi: Introduce device-managed SPI controller allocation
Cc: <stable@vger.kernel.org> # v5.7+
Cc: Chuanhong Guo <gch981213@gmail.com>
Link: https://lore.kernel.org/r/d5b9f0289465394e73dedb8ec51e180a8f1dffc9.1607286887.git.lukas@wunner.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-mtk-nor.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-mtk-nor.c b/drivers/spi/spi-mtk-nor.c index bf2d0f9cdd19..2e2f36a2e385 100644 --- a/drivers/spi/spi-mtk-nor.c +++ b/drivers/spi/spi-mtk-nor.c @@ -781,7 +781,7 @@ static int mtk_nor_probe(struct platform_device *pdev) return -EINVAL; } - ctlr = spi_alloc_master(&pdev->dev, sizeof(*sp)); + ctlr = devm_spi_alloc_master(&pdev->dev, sizeof(*sp)); if (!ctlr) { dev_err(&pdev->dev, "failed to allocate spi controller\n"); return -ENOMEM; |