* [PATCH v2] mhi_bus: core: Return EAGAIN if MHI ring is full
@ 2021-02-16 21:03 Jeffrey Hugo
0 siblings, 0 replies; only message in thread
From: Jeffrey Hugo @ 2021-02-16 21:03 UTC (permalink / raw)
To: manivannan.sadhasivam, hemantk
Cc: bbhatt, linux-arm-msm, linux-kernel, Fan Wu, Jeffrey Hugo
From: Fan Wu <wufan@codeaurora.org>
Currently ENOMEM is returned when MHI ring is full. This error code is
very misleading. Change to EAGAIN instead.
Signed-off-by: Fan Wu <wufan@codeaurora.org>
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>
---
v2: Change from EBUSY to EAGAIN
drivers/bus/mhi/core/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
index f182736..c043574 100644
--- a/drivers/bus/mhi/core/main.c
+++ b/drivers/bus/mhi/core/main.c
@@ -996,7 +996,7 @@ static int mhi_queue(struct mhi_device *mhi_dev, struct mhi_buf_info *buf_info,
ret = mhi_is_ring_full(mhi_cntrl, tre_ring);
if (unlikely(ret)) {
- ret = -ENOMEM;
+ ret = -EAGAIN;
goto exit_unlock;
}
--
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