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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a697ae6ea5
davinci_mcasp_get_dma_type() invokes dma_request_chan(), which returns a reference of the specified dma_chan object to "chan" with increased refcnt. When davinci_mcasp_get_dma_type() returns, local variable "chan" becomes invalid, so the refcount should be decreased to keep refcount balanced. The reference counting issue happens in one exception handling path of davinci_mcasp_get_dma_type(). When chan device is NULL, the function forgets to decrease the refcnt increased by dma_request_chan(), causing a refcnt leak. Fix this issue by calling dma_release_channel() when chan device is NULL. Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/1587818916-38730-1-git-send-email-xiyuyang19@fudan.edu.cn Signed-off-by: Mark Brown <broonie@kernel.org> |
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| .. | ||
| ams-delta.c | ||
| davinci-evm.c | ||
| davinci-i2s.c | ||
| davinci-i2s.h | ||
| davinci-mcasp.c | ||
| davinci-mcasp.h | ||
| davinci-vcif.c | ||
| edma-pcm.c | ||
| edma-pcm.h | ||
| Kconfig | ||
| Makefile | ||
| n810.c | ||
| omap3pandora.c | ||
| omap-abe-twl6040.c | ||
| omap-dmic.c | ||
| omap-dmic.h | ||
| omap-hdmi.c | ||
| omap-mcbsp-priv.h | ||
| omap-mcbsp-st.c | ||
| omap-mcbsp.c | ||
| omap-mcbsp.h | ||
| omap-mcpdm.c | ||
| omap-mcpdm.h | ||
| omap-twl4030.c | ||
| osk5912.c | ||
| rx51.c | ||
| sdma-pcm.c | ||
| sdma-pcm.h | ||
| udma-pcm.c | ||
| udma-pcm.h | ||