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cpufreq: pxa2xx: initialize variables

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gcc-3.8 correctly found that the variables set by find_freq_tables()
are not initialized if this function is called on something other
than a pxa2xx or pxa3xx:

pxa2xx-cpufreq.c: In function 'pxa_verify_policy':
pxa2xx-cpufreq.c:272:6: warning: 'pxa_freqs_table' may be used uninitialized in this function [-Wmaybe-uninitialized]
pxa2xx-cpufreq.c: In function 'pxa_set_target':
pxa2xx-cpufreq.c:345:23: warning: 'pxa_freq_settings' may be used uninitialized in this function [-Wmaybe-uninitialized]

Rather than adding a bogus initialization that would let us
get a little further before crashing, add an explicit BUG().
We know that this code is designed to run on only these cpus,
so this will fix the build warning and give a more helpful
diagnostic if the code ever changes to run on other machines.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Arnd Bergmann 2013-04-25 19:28:57 +02:00 committed by Rafael J. Wysocki
parent 5eed1987e2
commit 7264a2bbb0
1 changed files with 3 additions and 2 deletions
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5
drivers/cpufreq/pxa2xx-cpufreq.c
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@ -221,10 +221,11 @@ static void find_freq_tables(struct cpufreq_frequency_table **freq_table,
*pxa_freqs = pxa255_turbo_freqs;
*freq_table = pxa255_turbo_freq_table;
}
}
if (cpu_is_pxa27x()) {
} else if (cpu_is_pxa27x()) {
*pxa_freqs = pxa27x_freqs;
*freq_table = pxa27x_freq_table;
} else {
BUG();
}
}