From: Ralf Baechle <ralf@ongar.mips.com>
Date: Fri, 9 Dec 2005 12:34:45 +0000 (+0000)
Subject: MIPS: Oprofile: Print error message if the CPU happen to have no counters.
X-Git-Tag: firefly_0821_release~39198^2~10
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9efeae9a5cae7e7bdacff666a1d689f5b2901c64;p=firefly-linux-kernel-4.4.55.git

MIPS: Oprofile: Print error message if the CPU happen to have no counters.

Signed-off-by: Ralf Baechle <ralf@ongar.mips.com>
---

diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index a4a4aa99ab03..d97bbff031e5 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -180,8 +180,10 @@ static int __init mipsxx_init(void)
 	int counters;
 
 	counters = n_counters();
-	if (counters == 0)
+	if (counters == 0) {
+		printk(KERN_ERR "Oprofile: CPU has no performance counters\n");
 		return -ENODEV;
+	}
 
 	reset_counters(counters);