This is a note to let you know that I've just added the patch titled
soc: qcom: icc-bwmon: fix incorrect error code passed to dev_err_probe()
to the 6.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
soc-qcom-icc-bwmon-fix-incorrect-error-code-passed-to-dev_err_probe.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3530167c6fe8001de6c026a3058eaca4c8a5329f Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Date: Sat, 13 May 2023 13:17:47 +0200
Subject: soc: qcom: icc-bwmon: fix incorrect error code passed to dev_err_probe()
From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
commit 3530167c6fe8001de6c026a3058eaca4c8a5329f upstream.
Pass to dev_err_probe() PTR_ERR from actual dev_pm_opp_find_bw_floor()
call which failed, instead of previous ret which at this point is 0.
Failure of dev_pm_opp_find_bw_floor() would result in prematurely ending
the probe with success.
Fixes smatch warnings:
drivers/soc/qcom/icc-bwmon.c:776 bwmon_probe() warn: passing zero to 'dev_err_probe'
drivers/soc/qcom/icc-bwmon.c:781 bwmon_probe() warn: passing zero to 'dev_err_probe'
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <error27@xxxxxxxxx>
Link: https://lore.kernel.org/r/202305131657.76XeHDjF-lkp@xxxxxxxxx/
Cc: <stable@xxxxxxxxxxxxxxx>
Fixes: b9c2ae6cac40 ("soc: qcom: icc-bwmon: Add bandwidth monitoring driver")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230513111747.132532-1-krzysztof.kozlowski@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/soc/qcom/icc-bwmon.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/soc/qcom/icc-bwmon.c
+++ b/drivers/soc/qcom/icc-bwmon.c
@@ -603,12 +603,12 @@ static int bwmon_probe(struct platform_d
bwmon->max_bw_kbps = UINT_MAX;
opp = dev_pm_opp_find_bw_floor(dev, &bwmon->max_bw_kbps, 0);
if (IS_ERR(opp))
- return dev_err_probe(dev, ret, "failed to find max peak bandwidth\n");
+ return dev_err_probe(dev, PTR_ERR(opp), "failed to find max peak bandwidth\n");
bwmon->min_bw_kbps = 0;
opp = dev_pm_opp_find_bw_ceil(dev, &bwmon->min_bw_kbps, 0);
if (IS_ERR(opp))
- return dev_err_probe(dev, ret, "failed to find min peak bandwidth\n");
+ return dev_err_probe(dev, PTR_ERR(opp), "failed to find min peak bandwidth\n");
bwmon->dev = dev;
Patches currently in stable-queue which might be from krzysztof.kozlowski@xxxxxxxxxx are
queue-6.3/soc-qcom-icc-bwmon-fix-incorrect-error-code-passed-to-dev_err_probe.patch
