From: Lukas Wunner lukas@wunner.de
commit c575e9113bff5e024d75481613faed5ef9d465b2 upstream.
If the calls to devm_request_irq() or devm_spi_register_master() fail on probe of the PIC32 SPI driver, the DMA channels requested by pic32_spi_dma_prep() are erroneously not released. Plug the leak.
Fixes: 1bcb9f8ceb67 ("spi: spi-pic32: Add PIC32 SPI master driver") Signed-off-by: Lukas Wunner lukas@wunner.de Cc: stable@vger.kernel.org # v4.7+ Cc: Purna Chandra Mandal purna.mandal@microchip.com Link: https://lore.kernel.org/r/9624250e3a7aa61274b38219a62375bac1def637.160487448... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/spi/spi-pic32.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/spi/spi-pic32.c +++ b/drivers/spi/spi-pic32.c @@ -825,6 +825,7 @@ static int pic32_spi_probe(struct platfo return 0;
err_bailout: + pic32_spi_dma_unprep(pic32s); clk_disable_unprepare(pic32s->clk); err_master: spi_master_put(master);