linux-kernel - [PATCH AUTOSEL 4.14 5/6] ARC: fix spare error

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Message-ID: <20231226002725.7471-5-sashal@kernel.org>
Date: Mon, 25 Dec 2023 19:27:12 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Vineet Gupta <vgupta@...nel.org>,
	kernel test robot <lkp@...el.com>,
	Sasha Levin <sashal@...nel.org>,
	arnd@...db.de,
	linux-snps-arc@...ts.infradead.org
Subject: [PATCH AUTOSEL 4.14 5/6] ARC: fix spare error

From: Vineet Gupta <vgupta@...nel.org>

[ Upstream commit aca02d933f63ba8bc84258bf35f9ffaf6b664336 ]

Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312082320.VDN5A9hb-lkp@intel.com/
Signed-off-by: Vineet Gupta <vgupta@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arc/kernel/signal.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index 68901f6f18bab..c36e642eb1a0a 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -64,7 +64,7 @@ struct rt_sigframe {
 	unsigned int sigret_magic;
 };
 
-static int save_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
+static int save_arcv2_regs(struct sigcontext __user *mctx, struct pt_regs *regs)
 {
 	int err = 0;
 #ifndef CONFIG_ISA_ARCOMPACT
@@ -77,12 +77,12 @@ static int save_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
 #else
 	v2abi.r58 = v2abi.r59 = 0;
 #endif
-	err = __copy_to_user(&mctx->v2abi, &v2abi, sizeof(v2abi));
+	err = __copy_to_user(&mctx->v2abi, (void const *)&v2abi, sizeof(v2abi));
 #endif
 	return err;
 }
 
-static int restore_arcv2_regs(struct sigcontext *mctx, struct pt_regs *regs)
+static int restore_arcv2_regs(struct sigcontext __user *mctx, struct pt_regs *regs)
 {
 	int err = 0;
 #ifndef CONFIG_ISA_ARCOMPACT
-- 
2.43.0