From: <gregkh@linuxfoundation.org>
To: d202180596@hust.edu.cn, andi.shyti@kernel.org, dzm91@hust.edu.cn,
stable@vger.kernel.org, wsa@kernel.org
Cc: <stable@vger.kernel.org>
Subject: FAILED: patch "[PATCH] i2c: qup: Add missing unwind goto in qup_i2c_probe()" failed to apply to 5.4-stable tree
Date: Sun, 16 Jul 2023 10:45:43 +0200 [thread overview]
Message-ID: <2023071643-deputize-alias-9624@gregkh> (raw)
The patch below does not apply to the 5.4-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-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x cd9489623c29aa2f8cc07088168afb6e0d5ef06d
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023071643-deputize-alias-9624@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
cd9489623c29 ("i2c: qup: Add missing unwind goto in qup_i2c_probe()")
e42688ed5cf5 ("i2c: busses: remove duplicate dev_err()")
e0442d762139 ("i2c: busses: convert to devm_platform_ioremap_resource")
90224e6468e1 ("i2c: drivers: Use generic definitions for bus frequencies")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From cd9489623c29aa2f8cc07088168afb6e0d5ef06d Mon Sep 17 00:00:00 2001
From: Shuai Jiang <d202180596@hust.edu.cn>
Date: Tue, 18 Apr 2023 21:56:12 +0800
Subject: [PATCH] i2c: qup: Add missing unwind goto in qup_i2c_probe()
Smatch Warns:
drivers/i2c/busses/i2c-qup.c:1784 qup_i2c_probe()
warn: missing unwind goto?
The goto label "fail_runtime" and "fail" will disable qup->pclk,
but here qup->pclk failed to obtain, in order to be consistent,
change the direct return to goto label "fail_dma".
Fixes: 9cedf3b2f099 ("i2c: qup: Add bam dma capabilities")
Signed-off-by: Shuai Jiang <d202180596@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Cc: <stable@vger.kernel.org> # v4.6+
diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c
index 2e153f2f71b6..78682388e02e 100644
--- a/drivers/i2c/busses/i2c-qup.c
+++ b/drivers/i2c/busses/i2c-qup.c
@@ -1752,16 +1752,21 @@ static int qup_i2c_probe(struct platform_device *pdev)
if (!clk_freq || clk_freq > I2C_MAX_FAST_MODE_PLUS_FREQ) {
dev_err(qup->dev, "clock frequency not supported %d\n",
clk_freq);
- return -EINVAL;
+ ret = -EINVAL;
+ goto fail_dma;
}
qup->base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(qup->base))
- return PTR_ERR(qup->base);
+ if (IS_ERR(qup->base)) {
+ ret = PTR_ERR(qup->base);
+ goto fail_dma;
+ }
qup->irq = platform_get_irq(pdev, 0);
- if (qup->irq < 0)
- return qup->irq;
+ if (qup->irq < 0) {
+ ret = qup->irq;
+ goto fail_dma;
+ }
if (has_acpi_companion(qup->dev)) {
ret = device_property_read_u32(qup->dev,
@@ -1775,13 +1780,15 @@ static int qup_i2c_probe(struct platform_device *pdev)
qup->clk = devm_clk_get(qup->dev, "core");
if (IS_ERR(qup->clk)) {
dev_err(qup->dev, "Could not get core clock\n");
- return PTR_ERR(qup->clk);
+ ret = PTR_ERR(qup->clk);
+ goto fail_dma;
}
qup->pclk = devm_clk_get(qup->dev, "iface");
if (IS_ERR(qup->pclk)) {
dev_err(qup->dev, "Could not get iface clock\n");
- return PTR_ERR(qup->pclk);
+ ret = PTR_ERR(qup->pclk);
+ goto fail_dma;
}
qup_i2c_enable_clocks(qup);
src_clk_freq = clk_get_rate(qup->clk);
reply other threads:[~2023-07-16 8:45 UTC|newest]
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