From: Austin Kim <austindh.kim@gmail.com>
To: linux@armlinux.org.uk, rmk+kernel@armlinux.org.uk, arnd@arndb.de
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, austin.kim@lge.com,
p4ranlee@gmail.com
Subject: [PATCH] arm: kdump: add invalid value check for 'crashkernel='
Date: Wed, 30 Mar 2022 12:07:15 +0100 [thread overview]
Message-ID: <20220330110715.GA1534@raspberrypi> (raw)
From: Austin Kim <austin.kim@lge.com>
Add invalid value check expression when no crashkernel= or invalid value
specified using kdump.
Signed-off-by: Austin Kim <austin.kim@lge.com>
---
arch/arm/kernel/setup.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 039feb7cd590..8018d71ccaed 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -1004,7 +1004,8 @@ static void __init reserve_crashkernel(void)
total_mem = get_total_mem();
ret = parse_crashkernel(boot_command_line, total_mem,
&crash_size, &crash_base);
- if (ret)
+ /* no crashkernel= or invalid value specified */
+ if (ret || !crash_size)
return;
if (crash_base <= 0) {
--
2.20.1
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next reply other threads:[~2022-03-30 11:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-30 11:07 Austin Kim [this message]
2022-03-31 7:10 ` [PATCH] arm: kdump: add invalid value check for 'crashkernel=' Russell King (Oracle)
2022-03-31 9:49 ` Austin Kim
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