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authorMark Brown <broonie@kernel.org>2016-11-04 12:16:38 -0600
committerMark Brown <broonie@kernel.org>2016-11-04 12:16:38 -0600
commitcc9b94029e9ef51787af908e9856b1eed314bc00 (patch)
tree9675310b89d0f6fb1f7bd9423f0638c4ee5226fd /include/linux/ptp_clock_kernel.h
parent13bed58ce8748d430a26e353a09b89f9d613a71f (diff)
parent1b5b42216469b05ef4b5916cb40b127dfab1da88 (diff)
downloadlwn-cc9b94029e9ef51787af908e9856b1eed314bc00.tar.gz
lwn-cc9b94029e9ef51787af908e9856b1eed314bc00.zip
Merge branch 'topic/error' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-fixed
Diffstat (limited to 'include/linux/ptp_clock_kernel.h')
-rw-r--r--include/linux/ptp_clock_kernel.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h
index 6b15e168148a..5ad54fc66cf0 100644
--- a/include/linux/ptp_clock_kernel.h
+++ b/include/linux/ptp_clock_kernel.h
@@ -127,6 +127,11 @@ struct ptp_clock;
*
* @info: Structure describing the new clock.
* @parent: Pointer to the parent device of the new clock.
+ *
+ * Returns a valid pointer on success or PTR_ERR on failure. If PHC
+ * support is missing at the configuration level, this function
+ * returns NULL, and drivers are expected to gracefully handle that
+ * case separately.
*/
extern struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,