From: Arnd Bergmann Date: Thu, 25 Apr 2013 17:28:57 +0000 (+0200) Subject: cpufreq: pxa2xx: initialize variables X-Git-Tag: upstream/snapshot3+hdmi~5120^2~4^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7264a2bbb0a1d9935c653cb0e0cb48cfcaa87538;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git cpufreq: pxa2xx: initialize variables 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 Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c index fe4c55b..9e5bc8e 100644 --- a/drivers/cpufreq/pxa2xx-cpufreq.c +++ b/drivers/cpufreq/pxa2xx-cpufreq.c @@ -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(); } }