On Tue, May 23, 2023 at 12:39 AM Srinivas Pandruvada srinivas.pandruvada@linux.intel.com wrote:
Prior to the commit: "763bd29fd3d1 ("thermal: int340x_thermal: Use sysfs_emit_at() instead of scnprintf()" there was a new line after each UUID string. With the newline removed, existing user space like "thermald" fails to compare each supported UUID as it is using getline() to read UUID and apply correct thermal table.
To avoid breaking existing user space, add newline after each UUID string.
Signed-off-by: Srinivas Pandruvada srinivas.pandruvada@linux.intel.com Fixes: 763bd29fd3d1 ("thermal: int340x_thermal: Use sysfs_emit_at() instead of scnprintf()") Cc: stable@vger.kernel.org # v6.3+
drivers/thermal/intel/int340x_thermal/int3400_thermal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c index 810231b59dcd..5e1164226ada 100644 --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c @@ -131,7 +131,7 @@ static ssize_t available_uuids_show(struct device *dev,
for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) { if (priv->uuid_bitmap & (1 << i))
length += sysfs_emit_at(buf, length, int3400_thermal_uuids[i]);
length += sysfs_emit_at(buf, length, "%s\n", int3400_thermal_uuids[i]); } return length;@@ -149,7 +149,7 @@ static ssize_t current_uuid_show(struct device *dev,
for (i = 0; i <= INT3400_THERMAL_CRITICAL; i++) { if (priv->os_uuid_mask & BIT(i))
length += sysfs_emit_at(buf, length, int3400_thermal_uuids[i]);
length += sysfs_emit_at(buf, length, "%s\n", int3400_thermal_uuids[i]); } if (length)--
Applied as 6.4-rc material, thanks!