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* [PATCH v2] unwind: Fix signedness bug in unwind_deferred_request()
@ 2025-11-19 17:12 Dan Carpenter
  0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2025-11-19 17:12 UTC (permalink / raw)
  To: Steven Rostedt; +Cc: Josh Poimboeuf, linux-kernel, kernel-janitors

The "bit" value comes from "work->bit".  It is set to -1 if we cancel
the work in unwind_deferred_cancel().  It needs to be signed because
we check for negative values.  Change the type from unsigned long to int.

Fixes: 357eda2d7450 ("unwind deferred: Use SRCU unwind_deferred_task_work()")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
v2: fix style issue

 kernel/unwind/deferred.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/unwind/deferred.c b/kernel/unwind/deferred.c
index a88fb481c4a3..3dda585963d5 100644
--- a/kernel/unwind/deferred.c
+++ b/kernel/unwind/deferred.c
@@ -232,7 +232,7 @@ int unwind_deferred_request(struct unwind_work *work, u64 *cookie)
 	struct unwind_task_info *info = &current->unwind_info;
 	int twa_mode = TWA_RESUME;
 	unsigned long old, bits;
-	unsigned long bit;
+	int bit;
 	int ret;
 
 	*cookie = 0;
-- 
2.51.0


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2025-11-19 17:12 [PATCH v2] unwind: Fix signedness bug in unwind_deferred_request() Dan Carpenter

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