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generic: 5.15: backport smempart parser fixup patch with EPROBE_DEFER error

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Backport patch from kernel 5.15 that mute error on EPROBE_DEFER with
smempart parser.

This parser require the smem device to be probed first and currently it
may happen that mtd gets probed before the smem device causing an error
on the smempart parser. This error may be confusing and should be muted.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi 2022-10-20 16:48:16 +02:00
parent 221020fda6
commit 04a8944178
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1 changed files with 32 additions and 0 deletions
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target/linux/generic/backport-5.15/407-v5.17-mtd-parsers-qcom-Don-t-print-error-message-on-EPROBE.patch Normal file
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@ -0,0 +1,32 @@
From 26bccc9671ba5e01f7153addbe94e7dc3f677375 Mon Sep 17 00:00:00 2001
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Mon, 3 Jan 2022 03:03:16 +0000
Subject: [PATCH 13/14] mtd: parsers: qcom: Don't print error message on
-EPROBE_DEFER
Its possible for the main smem driver to not be loaded by the time we come
along to parse the smem partition description but, this is a perfectly
normal thing.
No need to print out an error message in this case.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220103030316.58301-3-bryan.odonoghue@linaro.org
---
drivers/mtd/parsers/qcomsmempart.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/mtd/parsers/qcomsmempart.c
+++ b/drivers/mtd/parsers/qcomsmempart.c
@@ -75,7 +75,8 @@ static int parse_qcomsmem_part(struct mt
pr_debug("Parsing partition table info from SMEM\n");
ptable = qcom_smem_get(SMEM_APPS, SMEM_AARM_PARTITION_TABLE, &len);
if (IS_ERR(ptable)) {
- pr_err("Error reading partition table header\n");
+ if (PTR_ERR(ptable) != -EPROBE_DEFER)
+ pr_err("Error reading partition table header\n");
return PTR_ERR(ptable);
}