FAILED: patch "[PATCH] platform/x86/intel-uncore-freq: Return error on write" failed to apply to 5.15-stable tree

FAILED: patch "[PATCH] platform/x86/intel-uncore-freq: Return error on write" failed to apply to 5.15-stable tree

[gregkh]

The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 75e406b540c3eca67625d97bbefd4e3787eafbfe
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023051324-calm-crummy-b754@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..

Possible dependencies:

75e406b540c3 ("platform/x86/intel-uncore-freq: Return error on write frequency")
dbce412a7733 ("platform/x86/intel-uncore-freq: Split common and enumeration part")
414eef27283a ("platform/x86/intel/uncore-freq: Display uncore current frequency")
ae7b2ce57851 ("platform/x86/intel/uncore-freq: Use sysfs API to create attributes")
ce2645c458b5 ("platform/x86/intel/uncore-freq: Move to uncore-frequency folder")
6dc69d3d0d18 ("Merge tag 'driver-core-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 75e406b540c3eca67625d97bbefd4e3787eafbfe Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Tue, 18 Apr 2023 08:32:30 -0700
Subject: [PATCH] platform/x86/intel-uncore-freq: Return error on write
 frequency
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Currently when the uncore_write() returns error, it is silently
ignored. Return error to user space when uncore_write() fails.

Fixes: 49a474c7ba51 ("platform/x86: Add support for Uncore frequency control")
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Wendy Wang <wendy.wang@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230418153230.679094-1-srinivas.pandruvada@linux.intel.com
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c
index 1a300e14f350..064f186ae81b 100644
--- a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c
+++ b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c
@@ -44,14 +44,18 @@ static ssize_t store_min_max_freq_khz(struct uncore_data *data,
 				      int min_max)
 {
 	unsigned int input;
+	int ret;
 
 	if (kstrtouint(buf, 10, &input))
 		return -EINVAL;
 
 	mutex_lock(&uncore_lock);
-	uncore_write(data, input, min_max);
+	ret = uncore_write(data, input, min_max);
 	mutex_unlock(&uncore_lock);
 
+	if (ret)
+		return ret;
+
 	return count;
 }