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meta-ti/recipes-kernel/linux/linux-mainline-3.2/omap_cpufreq/0009-cpufreq-OMAP-put-clk-if-cpu_init-failed.patch
Koen Kooi 4e18d70247 linux-mainline 3.2: kernel recipe based on mainline 3.2.16 with additional patches for e.g. beagleboard on top
This patchset is managed in https://github.com/beagleboard/kernel/tree/beagleboard-3.2 by Robert Nelson and myself.

Tested on beagleboard-xM/Angstrom

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Denys Dmytriyenko <denys@ti.com>
2012-05-03 19:09:07 -04:00

62 lines
1.8 KiB
Diff

From 7f37af0e32e0bc99fc7459bfd3a6748c44b7d563 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Thu, 26 May 2011 19:39:19 -0700
Subject: [PATCH 09/11] cpufreq: OMAP: put clk if cpu_init failed
Release the mpu_clk in fail paths.
Reported-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
---
drivers/cpufreq/omap-cpufreq.c | 14 +++++++++++---
1 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 8f778b9..8c54192 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -158,8 +158,10 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
if (IS_ERR(mpu_clk))
return PTR_ERR(mpu_clk);
- if (policy->cpu >= NR_CPUS)
- return -EINVAL;
+ if (policy->cpu >= NR_CPUS) {
+ result = -EINVAL;
+ goto fail_ck;
+ }
policy->cur = policy->min = policy->max = omap_getspeed(policy->cpu);
result = opp_init_cpufreq_table(mpu_dev, &freq_table);
@@ -167,12 +169,14 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
if (result) {
dev_err(mpu_dev, "%s: cpu%d: failed creating freq table[%d]\n",
__func__, policy->cpu, result);
- return result;
+ goto fail_ck;
}
result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
if (!result)
cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
+ else
+ goto fail_ck;
policy->min = policy->cpuinfo.min_freq;
policy->max = policy->cpuinfo.max_freq;
@@ -194,6 +198,10 @@ static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
policy->cpuinfo.transition_latency = 300 * 1000;
return 0;
+
+fail_ck:
+ clk_put(mpu_clk);
+ return result;
}
static int omap_cpu_exit(struct cpufreq_policy *policy)
--
1.7.7.4