diff options
| author | Clément Le Goffic <clement.legoffic@foss.st.com> | 2025-06-30 14:59:23 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-06-30 15:59:47 +0100 |
| commit | f4d8438e6a402ad40cf4ccb6e2d2417d9ed47821 (patch) | |
| tree | 4aabb616a12d06df1a69b6ef64d33b34ab6df2bf /drivers/spi/spi-stm32.c | |
| parent | 7e1c28fbf235791cb5046fafdac5bc16fe8e788d (diff) | |
spi: stm32: fix sram pool free in probe error path
Add a test to check whether the sram_pool is NULL before freeing it.
Fixes: d17dd2f1d8a1 ("spi: stm32: use STM32 DMA with STM32 MDMA to enhance DDR use")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Clément Le Goffic <clement.legoffic@foss.st.com>
Link: https://patch.msgid.link/20250630-spi-fix-v2-1-4680939e2a3e@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-stm32.c')
| -rw-r--r-- | drivers/spi/spi-stm32.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c index 3d20f09f1ae7..858470a2cab5 100644 --- a/drivers/spi/spi-stm32.c +++ b/drivers/spi/spi-stm32.c @@ -2486,7 +2486,9 @@ err_pm_disable: if (spi->mdma_rx) dma_release_channel(spi->mdma_rx); err_pool_free: - gen_pool_free(spi->sram_pool, (unsigned long)spi->sram_rx_buf, spi->sram_rx_buf_size); + if (spi->sram_pool) + gen_pool_free(spi->sram_pool, (unsigned long)spi->sram_rx_buf, + spi->sram_rx_buf_size); err_dma_release: if (spi->dma_tx) dma_release_channel(spi->dma_tx); |