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48 lines
1.9 KiB
Diff
48 lines
1.9 KiB
Diff
From 4e8909064886f748c3c97ff20c225d94630c067a Mon Sep 17 00:00:00 2001
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From: Nathan Chancellor <nathan@kernel.org>
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Date: Mon, 31 Jan 2022 17:23:38 -0700
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Subject: [PATCH 385/726] media: bcm2835-unicam: Set ret on error path in
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unicam_async_complete()
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Clang warns:
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drivers/media/platform/bcm2835/bcm2835-unicam.c:3109:6: warning: variable 'ret' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
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if (!source_pads) {
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^~~~~~~~~~~~
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drivers/media/platform/bcm2835/bcm2835-unicam.c:3152:9: note: uninitialized use occurs here
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return ret;
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^~~
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drivers/media/platform/bcm2835/bcm2835-unicam.c:3109:2: note: remove the 'if' if its condition is always false
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if (!source_pads) {
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^~~~~~~~~~~~~~~~~~~
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drivers/media/platform/bcm2835/bcm2835-unicam.c:3091:9: note: initialize the variable 'ret' to silence this warning
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int ret;
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^
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= 0
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1 warning generated.
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When the if condition is true, ret will be used uninitialized, which
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could result in undesirable behavior. Set ret to -ENODEV on the error
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path, which is a standard error code for the ->complete() callback.
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Fixes: d056e86eb35f ("media/bcm2835-unicam: Parse pad numbers correctly")
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Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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---
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drivers/media/platform/bcm2835/bcm2835-unicam.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/media/platform/bcm2835/bcm2835-unicam.c b/drivers/media/platform/bcm2835/bcm2835-unicam.c
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index 0a27ecf95818..228d771e6597 100644
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--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
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+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
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@@ -3108,6 +3108,7 @@ static int unicam_async_complete(struct v4l2_async_notifier *notifier)
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}
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if (!source_pads) {
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unicam_err(unicam, "No source pads on sensor.\n");
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+ ret = -ENODEV;
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goto unregister;
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}
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--
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2.33.1
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