kernel.git/drivers/rpmsg/qcom_smd.c, branch linux-4.9.y

rpmsg: qcom_smd: Fix irq_of_parse_and_map() return value

2022-06-14T14:52:37Z

[ Upstream commit 1a358d35066487d228a68303d808bc4721c6b1b9 ] The irq_of_parse_and_map() returns 0 on failure, not a negative ERRNO. Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend") Signed-off-by: Krzysztof Kozlowski Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20220422105326.78713-1-krzysztof.kozlowski@linaro.org Signed-off-by: Sasha Levin

rpmsg: smd: fix memory leak on channel create

2018-11-13T19:17:03Z

commit 940c620d6af8fca7d115de40f19870fba415efac upstream. Currently a failed allocation of channel->name leads to an immediate return without freeing channel. Fix this by setting ret to -ENOMEM and jumping to an exit path that kfree's channel. Detected by CoverityScan, CID#1473692 ("Resource Leak") Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend") Cc: stable@vger.kernel.org Signed-off-by: Colin Ian King Signed-off-by: Bjorn Andersson Signed-off-by: Greg Kroah-Hartman

rpmsg: smd: do not use mananged resources for endpoints and channels

2018-07-03T09:23:13Z

commit 4a2e84c6ed85434ce7843e4844b4d3263f7e233b upstream. All the managed resources would be freed by the time release function is invoked. Handling such memory in qcom_smd_edge_release() would do bad things. Found this issue while testing Audio usecase where the dsp is started up and shutdown in a loop. This patch fixes this issue by using simple kzalloc for allocating channel->name and channel which is then freed in qcom_smd_edge_release(). Without this patch restarting a remoteproc would crash the system. Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend") Cc: Signed-off-by: Srinivas Kandagatla Signed-off-by: Bjorn Andersson Signed-off-by: Greg Kroah-Hartman

rpmsg: qcom_smd: Correct return value for O_NONBLOCK

2017-01-12T10:39:31Z

commit 1d74e7ed5dc1903ac081574a9b6aa94e7ba4ad45 upstream. qcom_smd_send() should return -EAGAIN for non-blocking channels with insufficient space, so that we can propagate this event to user space. Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend") Signed-off-by: Bjorn Andersson Signed-off-by: Greg Kroah-Hartman

rpmsg: Introduce Qualcomm SMD backend

2016-09-09T05:15:26Z

This introduces a new rpmsg backend for the Qualcomm SMD system, allowing communication with various remote processors found in Qualcomm platforms. The implementation is based on, and intends to replace, drivers/soc/qcom/smd.c with the necessary adaptions for fitting with the rpmsg core. Based on original work by Sricharan R Cc: Sricharan R Signed-off-by: Bjorn Andersson