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authorSuman Anna <s-anna@ti.com>2022-02-13 14:12:42 -0600
committerBjorn Andersson <bjorn.andersson@linaro.org>2022-03-11 14:31:55 -0600
commitc13b780c4597e1e6cee3154053a196aa329b1367 (patch)
tree417f2b40c25c0ad2a681ad46718a836f509e8322 /Documentation/staging
parent8d9be5c6bdcda9e29597d3fbb24d1f6699da4616 (diff)
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remoteproc: Change rproc_shutdown() to return a status
The rproc_shutdown() function is currently not returning any error code, and any failures within rproc_stop() are not passed back to the users. Change the signature to return a success value back to the callers. The remoteproc sysfs and cdev interfaces are also updated to return back this status to userspace. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220213201246.25952-2-s-anna@ti.com
Diffstat (limited to 'Documentation/staging')
-rw-r--r--Documentation/staging/remoteproc.rst3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/staging/remoteproc.rst b/Documentation/staging/remoteproc.rst
index 9cccd3dd6a4b..348ee7e508ac 100644
--- a/Documentation/staging/remoteproc.rst
+++ b/Documentation/staging/remoteproc.rst
@@ -49,13 +49,14 @@ might also consider using dev_archdata for this).
::
- void rproc_shutdown(struct rproc *rproc)
+ int rproc_shutdown(struct rproc *rproc)
Power off a remote processor (previously booted with rproc_boot()).
In case @rproc is still being used by an additional user(s), then
this function will just decrement the power refcount and exit,
without really powering off the device.
+Returns 0 on success, and an appropriate error value otherwise.
Every call to rproc_boot() must (eventually) be accompanied by a call
to rproc_shutdown(). Calling rproc_shutdown() redundantly is a bug.