[PATCH] RISC-V: fix taking the text_mutex twice during sifive errata patching

[Conor Dooley]

From: Conor Dooley <conor.dooley at microchip.com>

Chris pointed out that some bonehead, *cough* me *cough*, added two
mutex_locks() to the SiFive errata patching. The second was meant to
have been a mutex_unlock().

Reported-by: Chris Hofstaedtler <zeha at debian.org>
Fixes: 9493e6f3ce02 ("RISC-V: take text_mutex during alternative patching")
Signed-off-by: Conor Dooley <conor.dooley at microchip.com>
---
Palmer, you want to take this one for PR#2, or is it too late?
---
 arch/riscv/errata/sifive/errata.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/errata/sifive/errata.c b/arch/riscv/errata/sifive/errata.c
index da55cb247e89..31d2ebea4286 100644
--- a/arch/riscv/errata/sifive/errata.c
+++ b/arch/riscv/errata/sifive/errata.c
@@ -111,7 +111,7 @@ void __init_or_module sifive_errata_patch_func(struct alt_entry *begin,
 			mutex_lock(&text_mutex);
 			patch_text_nosync(ALT_OLD_PTR(alt), ALT_ALT_PTR(alt),
 					  alt->alt_len);
-			mutex_lock(&text_mutex);
+			mutex_unlock(&text_mutex);
 			cpu_apply_errata |= tmp;
 		}
 	}
-- 
2.39.2